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Want to find the perfect supplements for you? Take the Quiz Give 20%, Get $20 Save 20% | Free Shipping on Orders Over $199 | 100% Money-Back Guarantee Save 20% | Free Shipping | 100% Money-Back Guarantee "No Return Necessary" Money-Back Guarantee * Help * Account Legion * Supplements * Take the Quiz * On Sale * Subscribe & Save 10% * Popular * New * Shop All * Stacks * Fat Loss Stack * Muscle Growth Stack * Pre-Workout Energy Stack * Pre-Workout Performance Stack * Pre-Workout Energy & Performance Stack * 30-Day Men's Transformation Stack * 30-Day Women's Transformation Stack * Optimal Performance Stack * Rapid Recovery Stack * Protein * Whey ON SALE * Casein ON SALE * Plant NEW * Protein Bars * Performance & Recovery * Natural Pre-Workout ON SALE * Caffeine-Free Pre-Workout * Post-Workout ON SALE * Performance Supplement * Energy Supplement * Nootropic * Vitality Support * Health & Wellness * Men's Multivitamin * Women's Multivitamin * Fish Oil * Vitamin D+K NEW * Sucrosomial® Magnesium NEW * Greens Supplement ON SALE * Joint Support ON SALE * Probiotic * Gut Support * Sleep Aid * Immune Support * Fat Loss * Caffeine-Free Fat Burner * Fat Burner * Pre-Workout Fat Burner * Merchandise * Men’s Apparel * Women’s Apparel * Accessories ON SALE * Gift Card * Coaching * Meal Plans * Weight Loss Meal Plans * Muscle Building Meal Plans * Custom Meal Plans * Deals & Rewards * On Sale * Rewards Program * Subscribe and Save * Learn * Books * Muscle for Life * Bigger Leaner Stronger ON SALE * Thinner Leaner Stronger ON SALE * The Shredded Chef * See All * Tools * Supplement Recommendation Quiz * Diet Recommendation Quiz * Strength Training Recommendation Quiz * Fitness Book Recommendation Quiz * Coaching Recommendation Quiz * Meal Planning Tool * Macronutrient Calculator * TDEE Calculator * Calorie Calculator * Body Fat Percentage Calculator * See All * Blog * Workouts * Weight Loss * Building Muscle * Nutrition * Supplements * Recipes * Motivation * Great Books * Success Stories * Podcast * Workout App * About * The Founder * The Story * The Science * The Process * The Truth * Giving Back * 0 * Search * Take the Quiz 0 19462 Home / Products / Pulse PULSE | PRE-WORKOUT Limited StockLimited Stock Limited Stock * * * * * * * * 100% Natural Ingredients Labdoor™ Tested for Purity "No Return Necessary" Money-Back Guarantee PULSE NATURAL PRE-WORKOUT $44.99$35.99$1.80 per serving 19,462 Verified Reviews 4.60 out of 5 5 star 79% 4 star 10% 3 star 4% 2 star 2% 1 star 3% See all reviews Or 4 easy payments of $9.00 with , , or ⌛ This flavor is on sale! Save 20%! On SalePopularBack-in-stock-promoBuild MuscleLose WeightMikes-favoritesMuscle-building-supplementsPerformance-recoveryPre-workout-and-post-workoutWorkout-supplements Get the only[1] Some popular pre-workouts are all-natural. Some contain the right mix of high-quality ingredients. Some provide clinically effective doses. But only Pulse checks each of these boxes. 100% natural[2] Pulse doesn’t just “contain natural ingredients“—every ingredient is naturally sourced from plants and animals. Pulse contains no artificial or synthetic substances of any kind. pre-workout drink with clinically effective doses[3] Every serving of Pulse contains 15.1 grams of active ingredients that have been shown to be safe and effective in peer-reviewed scientific research. of 6 scientifically proven ingredients[4] Every active ingredient in Pulse is backed by published scientific studies that show benefits in healthy humans. for more energy, focus, and strength without the jitters, upset stomach, or post-workout crash[5] Pulse contains no harsh stimulants that wind you up and burn you out. Instead, it contains a 1:1 ratio of caffeine and L-theanine, which produces a smooth energy rush and comfortable comedown. . * 54 peer-reviewed scientific studies support Pulse’s combination of ingredients and doses[6]That’s 508 pages of scientific research that shows Pulse works the way we say it does. * Contains no artificial sweeteners, flavors, food dyes, or other chemical junk[7]While these types of chemicals may not be as dangerous as some people claim, studies suggest that regular consumption of them may indeed be harmful to our health. And that’s why you won’t find them in Pulse. * Analyzed for purity and potency in a state-of-the-art ISO 17025 accredited lab[8]Every bottle of Pulse is guaranteed to provide exactly what the label claims and nothing else—no heavy metals, microbes, allergens, or other contaminants. Mojito (On Sale! Save 20%!) Mojito Mojito (On Sale! Save 20%!)Fruit Punch (Most Popular)Strawberry Kiwi (Back in Stock)Blue Raspberry (Mike's Favorite)Apple CiderArctic BlastBlood OrangeBlueberry LemonadeCherry LimeadeFrosted CranberryGrapeGreen ApplePink LemonadeSour CandyStrawberry MargaritaTropical PunchWatermelonPeach Ring (Out of Stock) 20 Servings 10 Servings 20 Servings With Caffeine With CaffeineWithout Caffeine Subscribe & Save 20% $44.99$35.99 ($1.80/serving) Cancel whenever you want No penalties or fees Edit your order anytime Change flavors, quantities, and delivery times One-Time Purchase (Save 20%) $44.99$35.99 ($1.80/serving) Or 4 easy payments of $9.00 with , , or - + Add to Cart -------------------------------------------------------------------------------- 4.6/5 (19,462 Verified Reviews) Buy Now Is Pulse “PRs in a bottle?” No. Will it add another plate or two to the bar? Absolutely not. But will it help you train harder, go longer, and finish stronger? Yes. Or your money back. * Total formulation transparency (no proprietary blends)[9] This means you know exactly what’s in every serving of Pulse—every dose of every ingredient—and can verify the accuracy and efficacy of the formulation. * Certified to contain no banned substances by Labdoor™, the gold standard of third-party lab testing[10] Before you buy a sports supplement, you should know that it's clean, safe, and transparent. And that's exactly what Labdoor's third-party testing and certification means. * Made in the USA in NSF-certified and FDA-inspected and cGMP-compliant facilities Pulse is also backed by our “No Return Necessary” money-back guarantee that works like this: If you don’t absolutely love Pulse, just let us know, and we’ll give you a full refund on the spot. No forms or return necessary. So order now, try Pulse risk-free, and see for yourself why it’s one of the most popular all-natural pre-workout supplements in the world (over 1,250,000 bottles sold and counting!). Is Pulse “PRs in a bottle?” No. Will it add another plate or two to the bar? Absolutely not. But will it help you train harder, go longer, and finish stronger? Yes. Or your money back. * 54 peer-reviewed scientific studies support Pulse’s ingredients and doses[6] That’s 508 pages of scientific research that shows Pulse works the way we say it does. * Contains no artificial sweeteners, flavors, food dyes, or other chemical junk[7] While these types of chemicals may not be as dangerous as some people claim, studies suggest that regular consumption of them may indeed be harmful to our health. And that’s why you won’t find them in Pulse. * Analyzed for purity and potency in a state-of-the-art ISO 17025 accredited lab[8] Every bottle of Pulse is guaranteed to provide exactly what the label claims and nothing else—no heavy metals, microbes, allergens, or other contaminants. * Total formulation transparency (no proprietary blends)[9] This means you know exactly what’s in every serving of Pulse—every dose of every ingredient—and can verify the accuracy and efficacy of the formulation. * Certified to contain no banned substances by Labdoor™, the gold standard of third-party lab testing[10] Before you buy a sports supplement, you should know that it's clean, safe, and transparent. And that's exactly what Labdoor's third-party testing and certification means. * Made in the USA in NSF-certified and FDA-inspected and cGMP-compliant facilities Pulse is also backed by our “No Return Necessary” money-back guarantee that works like this: If you don’t absolutely love Pulse, just let us know, and we’ll give you a full refund on the spot. No forms or return necessary. So order now, try Pulse risk-free, and see for yourself why it’s one of the most popular all-natural pre-workout supplements in the world (over 1,250,000 bottles sold and counting!). Click here to view Prop 65 WARNING. Notice to California Consumers WARNING: Consuming this product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food. INGREDIENTS (15.1 GRAMS PER SERVING) CAFFEINE (350 MILLIGRAMS PER SERVING) Many of us can’t shake the cobwebs without our morning cup of coffee, but this powerful compound is a lot more than a mere pick-me-up. Caffeine also boosts metabolism, improves strength, promotes muscle endurance, and enhances anaerobic performance.[11][12][13] The clinically effective dose of caffeine for enhancing performance is between 3 and 6 milligrams per kilogram of body weight.[14] L-THEANINE (350 MILLIGRAMS PER SERVING) L-theanine is an amino acid found primarily in tea that’s responsible for some of its health benefits. It helps balance the levels of two chemicals in the brain known as glutamate and GABA, which transmit nerve impulses. That’s why research shows that supplementation with L-theanine . . . * Reduces the effects of mental stress[15] * Increases the production of nitric oxide, which improves blood flow[16] * When paired with caffeine, improves mood, memory performance, and attention[17][18][19][20] The clinically effective dose of L-theanine when combined with caffeine is between a ratio of 1:1 and 2:1 theanine to caffeine, but as 2:1 may produce a calming effect, 1:1 is optimal for working out. CITRULLINE MALATE (8 GRAMS PER SERVING) Citrulline malate is the amino acid L-citrulline bound with malic acid, a natural substance found in many fruits that is involved in the creation of cellular energy. L-citrulline turns into another amino acid in the body known as L-arginine, which increases the production of a gas known as nitric oxide that widens blood vessels and improves blood flow.[21][22] This is why research shows that supplementation with citrulline malate . . . * Improves muscle endurance[23][24][25] * Relieves muscle soreness[26] * Improves aerobic performance[27][28] The clinically effective dose of citrulline malate is between 4 and 10 grams. BETA-ALANINE (3.6 GRAMS PER SERVING) Beta-alanine is a naturally occurring amino acid that regulates the amount of the molecule carnosine that can be stored in the muscles.[29] Carnosine reduces muscle acidity, which increases the amount of work that muscles can do before they become fatigued.[30] This is why research shows that supplementation with beta-alanine . . . * Reduces exercise-induced fatigue[31][32][33][34] * Improves anaerobic exercise capacity[35][36][37][38][39] * Increases potential workload, which can lead to an increase in lean mass[40][41] * Reduces feelings of fatigue during exercise[42][43][44] The clinically effective dose of beta-alanine is between 2.6 and 6.4 grams. We chose to include 3.6 grams of beta-alanine per serving because it provides significant performance benefits while also minimizing the common and harmless side effect of a mild prickling, itching, or tingling of the skin.[45] ALPHA-GPC (300 MILLIGRAMS PER SERVING) Alpha-glycerophosphocholine (also known as alpha-GPC and glycerophosphocholine) is a compound that contains two molecules known as choline and glycerophosphate. Choline is a nutrient that’s vital for brain health and function, and glycerophosphate is a substance that helps transport choline to the brain. When ingested, alpha-GPC increases the activity of a chemical in the brain known as acetylcholine, which is used by nerves to communicate with each other, and provides the brain with glycerophosphate, which can improve its health and function. This is why research shows that supplementation with alpha-GPC . . . * Increases power output[46] * Mitigates cognitive decline as we age[47] * Increases growth hormone levels[48] The clinically effective dose of alpha-GPC is between 150 and 1,200 milligrams, with 250 to 500 milligrams sufficient for cognitive benefits and higher doses required for affecting dementia.[49] We chose to include 300 milligrams of alpha-GPC (50%) per serving because it’s enough to provide some benefit without eating up too much budget that we’d rather spend on other ingredients. Furthermore, this dose reduces the likelihood of headaches in people who are using Pulse and Forge together, and especially in people who are using Pulse, Forge, and Ascend together. BETAINE (2.5 GRAMS PER SERVING) Betaine (also known as trimethylglycine) is an amino acid found in various foods like beets (hence the name), spinach, and quinoa. Betaine’s rich in a special molecule known as a methyl group, which is a vital component of many physiological functions, including DNA production, fat metabolism, cellular energy production, and more. Betaine’s also an osmolyte, which is a substance that helps balance fluid levels inside and outside cells. These two properties are beneficial during times of physical stress, and this is why studies show that betaine boosts muscle endurance and increases strength.[50][51] The clinically effective dose of betaine is between 1.25 and 2.5 grams. 100% NATURALLY SWEETENED & FLAVORED While artificial sweeteners may not be as dangerous as some people claim, studies suggest that regular consumption of these chemicals may indeed be harmful to our health.[52][53][54][55][56][57] That’s why we use the natural sweeteners stevia and erythritol instead. Studies show that these ingredients are not only safe but can also confer several health benefits, including better insulin sensitivity, a lower cholesterol profile, improved blood glucose control, potential anti-cancer effects, lower blood pressure and inflammation levels, and more.[58][59][60][61] NO ARTIFICIAL FOOD DYES OR OTHER CHEMICAL JUNK As with artificial sweeteners, studies show that artificial food dyes may cause negative effects in some people, including gastrointestinal toxicity and behavioral disorders.[62][63][64][65][66] That’s why we use natural coloring derived from fruits and other foods, as well as natural flavoring. LAB TESTED FOR POTENCY & PURITY Every bottle of Pulse is analyzed in a state-of-the-art ISO 17025 accredited lab to verify what is and isn’t in it. That way, you know exactly what you’re getting and putting into your body. View Latest Lab Results SEE HOW LEGION COMPARES TO THE REST. * * Active Ingredients * Clinically Effective Ingredients & Doses * Caffeine * Citrulline Malate * Beta-Alanine * Betaine * L-Theanine * Alpha-GPC * 100% Natural Ingredients * Naturally Sweetened & Flavored * Lab Tested * Labdoor Ranking * Price Per Serving * LEGION PULSE PRE-WORKOUT * 15,100 mg per serving * * 350 mg per serving * 8,000 mg per serving * 3,600 mg per serving * 2,500 mg per serving * 350 mg per serving * 300 mg per serving * * * * A- * $1.80 * PRE JYM PRE-WORKOUT * 20,955 mg per serving * * 300 mg per serving * 6,000 mg per serving * 2,000 mg per serving * 1,500 mg per serving * * 150 mg per serving * * * * * $1.66 * PESCIENCE PROLIFIC PRE-WORKOUT * 10,970 mg per serving * * 320 mg per seving * 6,000 mg per serving * * 2,500 mg per serving * 200 mg per serving * * * * * * $1.75 * C4 PRE-WORKOUT * 4,025 mg pre serving * * 150 mg per serving * * 1,600 mg per serving * * * * * * * C- * $1.00 THE #1 BRAND OF ALL-NATURAL SPORTS SUPPLEMENTS. Over 3,000,000 bottles sold to over 400,000 customers who have left us over 40,000 5-star reviews. NO CHEMICAL JUNK Pulse doesn’t just “contain natural ingredients”—every ingredient is naturally sourced. We don’t use artificial or synthetic substances of any kind. CLINICALLY EFFECTIVE INGREDIENTS & DOSES Every ingredient and dose (important!) in Pulse is backed by peer-reviewed scientific research demonstrating clear benefits. NATURALLY SWEETENED & FLAVORED Pulse is naturally sweetened and flavored with healthy, plant-based sweeteners and flavors. LAB TESTED Pulse is tested by third-party labs for heavy metals, microbes, allergens, and other contaminants to ensure it meets FDA purity standards. MADE IN USA Pulse is proudly made in America in NSF-certified and FDA-inspected facilities in accordance with the Current Good Manufacturing Practice (cGMP) regulations. "NO RETURN NECESSARY" MONEY-BACK GUARANTEE If you don't absolutely love Pulse, you get a prompt and courteous refund. No forms or returns necessary. TRUSTED BY SCIENTISTS, DOCTORS, AND EVERYDAY FITNESS FOLK ALIKE. Previous * SAL DI STEFANO, JUSTIN ANDREWS, AND ADAM SCHAFER Hosts of The Mind Pump Podcast "When it comes to quality and integrity, Legion is among the best. Their products only include ingredients that are backed by research and in doses that are proven to be effective in scientific studies." * DR. SPENCER NADOLSKY, MD Board Certified Family Medicine Physician and a Diplomate of the American Board of Obesity Medicine "There are a lot of sleazy supplement companies out there, but Legion is not one of them. Their products are free of fillers and inactive ingredients and they take the time (and money) to test them with independent labs to ensure you're getting what you pay for." * DR. GRANT TINSLEY, PHD Associate Professor and Director of Energy Balance & Body Composition Laboratory at Texas Tech University "Legion produces the highest quality supplements on the market. The ingredients and doses in their products are selected according to the scientific research, and they're continually working to improve their formulations based on new research." * DR. BILL CAMPBELL, PHD Professor of Exercise Science at University of South Florida "Legion is science-based at its core. All of their products contain doses proven to be effective by scientific studies, and they fund new research. They don't just want to sell you supplements—they want to change the supplement industry for the better." * MENNO HENSELMANS, MS Founder of Bayesian Bodybuilding, Published Scientist, and Physique Coach "Legion consults with nutrition experts to make honest, science-based products and then proves they're genuine with independent lab work. That's how all supplement companies should operate." * JAMES KRIEGER, MS Published Scientist, Author, and Speaker "There are three reasons I like Legion. First, they use ingredients backed by independent, peer-reviewed scientific studies. Second, the quality of their supplements exceeds many in the industry and you know you’re getting what’s on the label. Third, Mike Matthews is a solid evidence-based guy who doesn’t over-hype." * CHRIS BARAKAT, MS Published Scientist and Physique Coach "I've been involved in the supplement industry for over a decade now, and I can tell you that Legion is the ONLY company doing EVERYTHING right! They make effective products that are backed by scientific evidence, properly dose all of their ingredients, source every ingredient from the highest-quality sources, and are transparent about exactly what goes in each and every product." * KURTIS FRANK Co-Founder and Former Lead Researcher & Writer of Examine.com "With Legion, you really do get what you pay for. Each and every product is packed with effective doses of effective ingredients, and what’s on the label is what's actually in the bottle." * JORDAN SYATT Strength and Nutrition Coach "Legion is a tremendous company run by people I trust and respect. The quality of their supplements is second to no one. And while I don’t use many supplements, the only ones I do come from Legion." * SAL DI STEFANO, JUSTIN ANDREWS, AND ADAM SCHAFER Hosts of The Mind Pump Podcast "When it comes to quality and integrity, Legion is among the best. Their products only include ingredients that are backed by research and in doses that are proven to be effective in scientific studies." * DR. SPENCER NADOLSKY, MD Board Certified Family Medicine Physician and a Diplomate of the American Board of Obesity Medicine "There are a lot of sleazy supplement companies out there, but Legion is not one of them. Their products are free of fillers and inactive ingredients and they take the time (and money) to test them with independent labs to ensure you're getting what you pay for." 1 2 3 4 5 6 7 8 9 Next Slideshow OTHER TOP RATED PRODUCTS Slide controls * Thinner Leaner Stronger 4.7 star rating (75) * Women's Flexible Dieting Cutting... 4.6 star rating (80) * Phoenix Stim-Free 4.3 star rating (1121) * Bigger Leaner Stronger 4.7 star rating (100) * Forge 4.6 star rating (1053) * Ascend 4.5 star rating (472) * The Year One Challenge for Men 4.7 star rating (25) * The Fat Loss Stack 4.5 star rating (622) Powered by 4.6 4.6 star rating 19,462 Verified Reviews 5 4 3 2 1 4.6 4.6 star rating 19,462 Verified Reviews 5 4 3 2 1 Write A Review Ask A Question WRITE A REVIEW * Indicates a required field * Score: * Title: * Review: You are connected as Connect with: -OR- * Use your name: * Email: Review's title & body can't be empty Question's body can't be empty Please enter a star rating for this review Name field cannot be empty Invalid email Your review has already been submitted. 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Your question will appear on the site once someone answers it. * REVIEWS * QUESTIONS Clear All Filter Reviews Search Reviews Energy Ingredients Feel Taste Boost Effects Amount Pre Workout Quality Results Customer Service Pulse ... Stomach Formula Improvement Pre Workout Container Weight Value Crash Body Sugar Blend Workout Energy Ingredients Feel ... Taste Boost Effects More Filters FILTERS Clear All Rating Scores filter All Score all 5.0 star rating Score 5 4.0 star rating Score 4 3.0 star rating Score 3 2.0 star rating Score 2 1.0 star rating Score 1 Reviews Images filter All All reviews With Images & Videos Images only Show 3719 Reviews Rating * All * 5.0 star rating * 4.0 star rating * 3.0 star rating * 2.0 star rating * 1.0 star rating Images & Videos * All * With Images & Videos Clear All 19,462 Verified Reviews Sort: Select * Select * Newest * Highest Rating * Lowest Rating * Most Votes * Least Votes Updating Results R Rikki B. Verified Buyer 5.0 star rating 05/21/23 Great pump Review by Rikki B. on 21 May 2023 review stating Great pump Love pulse. It’s the only pre workout I use. Perfect amount of pump with no jitters! On Pulse share ' Share Review by Rikki B. on 21 May 2023 facebook facebook Share Review by Rikki B. on 21 May 2023 twitter twitter Share Review by Rikki B. on 21 May 2023 LinkedIn linkedin Share Review by Rikki B. on 21 May 2023 Comments (1) 05/21/23 Was this review helpful? 0 0 Comments by Store Owner on Review by Rikki B. on 21 May 2023 Legion 05/22/23 Hey Rikki, Thanks for the positive review! I'm glad to hear you are happy with Pulse and we really appreciate your support! If you have any more feedback you'd like to share or any questions you need help with, let me know! :) Alexandra K. - Team Legion 05/22/23 C Carey C. Verified Reviewer 5.0 star rating 05/21/23 Great Pre-Workout Review by Carey C. on 21 May 2023 review stating Great Pre-Workout Legion products are the best! This really gets me ready to conquer my workout! On Pulse share ' Share Review by Carey C. on 21 May 2023 facebook facebook Share Review by Carey C. on 21 May 2023 twitter twitter Share Review by Carey C. on 21 May 2023 LinkedIn linkedin Share Review by Carey C. on 21 May 2023 Comments (1) 05/21/23 Was this review helpful? 0 0 Comments by Store Owner on Review by Carey C. on 21 May 2023 Legion 05/22/23 Hey Carey, Thanks for the positive review! I'm glad to hear you are happy with Pulse and that it's helping with your workouts! We really appreciate your support! If you have any more feedback you'd like to share or any questions you need help with, let me know! :) Alexandra K. - Team Legion 05/22/23 S Steve B. Verified Buyer 5.0 star rating 05/19/23 Been using them both for Review by Steve B. on 19 May 2023 review stating Been using them both for Been using them both for years On Pulse share ' Share Review by Steve B. on 19 May 2023 facebook facebook Share Review by Steve B. on 19 May 2023 twitter twitter Share Review by Steve B. on 19 May 2023 LinkedIn linkedin Share Review by Steve B. on 19 May 2023 Comments (1) 05/19/23 Was this review helpful? 0 0 Comments by Store Owner on Review by Steve B. on 19 May 2023 Legion 05/22/23 Hey Steve, Thanks for the feedback! I'm glad to hear you're a long time user of Pulse and really enjoying it! Please keep me updated on any other feedback you might have! Alexandra K. - Team Legion 05/22/23 S Stephanie B. Verified Buyer 5.0 star rating 05/19/23 Blood orange is my favorite! Review by Stephanie B. on 19 May 2023 review stating Blood orange is my favorite! Blood orange is my favorite! Legion pre workout is a game changer!! I will never use anything else. On Pulse share ' Share Review by Stephanie B. on 19 May 2023 facebook facebook Share Review by Stephanie B. on 19 May 2023 twitter twitter Share Review by Stephanie B. on 19 May 2023 LinkedIn linkedin Share Review by Stephanie B. on 19 May 2023 Comments (1) 05/19/23 Was this review helpful? 0 0 Comments by Store Owner on Review by Stephanie B. on 19 May 2023 Legion 05/19/23 Hey Stephanie, Thanks for the positive review! I'm glad to hear you are happy with Pulse and we really appreciate your support! If you have any more feedback you'd like to share or any questions you need help with, let me know! :) Alexandra K. - Team Legion 05/19/23 S Shyela G. Verified Buyer 5.0 star rating 05/19/23 Love this!! Review by Shyela G. on 19 May 2023 review stating Love this!! Love this!! On Pulse share ' Share Review by Shyela G. on 19 May 2023 facebook facebook Share Review by Shyela G. on 19 May 2023 twitter twitter Share Review by Shyela G. on 19 May 2023 LinkedIn linkedin Share Review by Shyela G. on 19 May 2023 Comments (1) 05/19/23 Was this review helpful? 0 0 Comments by Store Owner on Review by Shyela G. on 19 May 2023 Legion 05/21/23 Hey Shyela, Thanks for the feedback! I'm happy to hear you're liking Pulse! :) Please keep me updated on any other feedback you might have! Alexandra K. - Team Legion 05/21/23 1 2 3 4 5 6 7 8 9 B Becca C. Verified Reviewer 05/15/23 Q: Is the legion pulse pre-workout gluten free? Answers (1) Legion 05/17/23 A: Hi Becca, Yes, it is! Lauren W. - Team Legion Was this answer helpful? 0 0 05/17/23 J Jon Verified Reviewer 04/07/23 Q: Why is beta alanine included in the pre-workout if it's something you need to take everyday similar to creatine to get an effect. Seems like it isn't a necessary ingredient to a pre-work out supplement you may only take a few times a week. And would make the product cheaper without it included. I think having a separate beta alanine product would be the right move. Answers (1) Legion 04/07/23 A: Hi Jon, Great question! You are correct that beta-alanine builds up in your muscles over time. When you take beta-alanine isn't all that important. What's most important is that it's taken daily or at least most days. Including it in a pre-workout supplement is a convenient way to take it. If you take Pulse 4 to 5x per week, you'll still get the benefits of beta-alanine, but it will take a little longer to build up in your body than if you took it daily. You can supplement with beta-alanine separately on the days you don't take Pulse for maximum benefits if you would like, but it isn't a must. I think it's a good idea for us to offer beta-alanine as a standalone supplement as well though! I will pass this feedback along to our product development team to get their thoughts. :) Please let me know if you have any other questions! Lauren W. - Team Legion Was this answer helpful? 2 0 04/07/23 K Kat Verified Reviewer 03/12/23 Q: How should we use this in the fat loss stack? Answers (1) Legion 03/16/23 A: Hi Kat, Forge is a stimulant meant to be taken before fasted workouts in order to increase fat loss. Pulse is a traditional pre-workout supplement meant to be taken before your workout in order to improve performance, enhance your mood, and increase stamina. Because Pulse only has 5 calories per serving, it will not break your fast so you can take them together. Please keep in mind that Forge is a stimulant and Pulse contains caffeine so you should start your dosage on the lower side and assess your tolerance before increasing to the full dosage. Then, take the Phoenix with your first meal of the day. I hope this helps and please let me know if you have any further questions. Lauren W. - Team Legion Was this answer helpful? 0 0 03/16/23 I Isaiah Verified Reviewer 02/28/23 Q: As of (02/28/23) the trending news article on erythritol is now claiming erythritol increases the risk of stroke, blood clots, heart attacks, etc... As the articles mention that this study needs more follow-up to confirm these findings, that as of right now, this study demonstrates associates and not causation. My question is, have you guys seen these articles? Since erythritol is in legion products, how do we know this is safe to continue to consume? The FDA recognizes erythritol as "generally regarded as safe," but there are things that the FDA has approved as GRAS, which are not safe. I also know that other factors could be involved in this study that could contribute to these findings. Answers (1) Legion 03/01/23 A: Hi Isaiah, I'm sorry for the concern here. Our team looked into this study and thankfully, there's nothing to be worried about. The study doesn't show anything significant that we can draw a conclusion from. The reason is that the study involved just 8 individuals who took 30g of erythritol (8x the amount in Pulse) and looked at how long erythritol stayed in the body. Then, the study went on to make a causal link between time in the system and related stroke risk. It didn’t look at anything epidemiological, any actual event history, etc. Also, the study was done on those already at risk for cardiovascular events, so the results can't be extrapolated to the general population. As an executive director of the Calorie Control Council stated, the results are "contrary to decades of scientific research showing low- and no-calorie sweeteners like erythritol are safe, as evidenced by global regulatory permissions for their use in foods and beverages, and should not be extrapolated to the general population, as the participants in the intervention were already at increased risk for cardiovascular events." With that said, we're always working to stay up-to-date on new research and find opportunities for product improvements. We will continue to monitor the research around erythritol and make any formula adjustments if needed. However, this new study doesn't provide any meaningful information that should cause concern. Based on the quality research available on erythritol, it's completely safe when consumed in moderate amounts. You can read a bit more about erythritol and other sugar alcohols in our article here: legionathletics.com/sugar-alcohols I hope this helps clear things up and please let me know if you have any other questions! Lauren W. - Team Legion Was this answer helpful? 1 0 03/01/23 C Catarena Verified Reviewer 02/27/23 Q: Is the caffeine free pulse safe to take while pregnant? Answers (1) Legion 03/01/23 A: Hi Catarena, Thanks for reaching out! Pulse Stim-Free should be safe to use while pregnant. However, because everyone's situation is different, we recommend you check with your doctor first. :) Lauren W. - Team Legion Was this answer helpful? 0 0 03/01/23 1 2 3 4 5 6 7 8 9 FREQUENTLY ASKED QUESTIONS How do I use Pulse? If this is your first time using Pulse, assess your individual tolerance by mixing 1 scoop with 10-12 ounces of water and drinking it 15-30 minutes prior to exercise. If you experience any non-optimum effects, stop and consult your doctor. If 1 scoop is well tolerated and you want the full clinically effective dose of Pulse, including 350 milligrams of caffeine, mix 2 scoops into 10-12 ounces of water, and drink it 15-30 minutes prior to exercise. How does Pulse compare to other popular pre-workouts? Compared to other popular pre-workouts, Pulse provides a clean rush of energy with no crash or jitters and an optimal dose of performance-enhancing ingredients to make your workouts significantly more enjoyable and productive. The only stimulant in Pulse is a moderate dose of caffeine, and we’ve also included a matching dose of the amino acid theanine, which makes the caffeine rush and “comedown” noticeably smoother and more enjoyable. Other pre-workouts can leave you feeling edgy and burned out. What type of workouts is Pulse good for? Pulse is good for both anaerobic and aerobic workouts. It's not just for weightlifting but for cardio and endurance training, too. Take it before a weightlifting workout to see benefits like increased strength and muscle endurance. Take it before a cardio session and see benefits like increased intensity and endurance. Whatever type of exercise you do, Pulse helps you do it better. Is Pulse for men and women? Pulse is for men and women. Keep in mind that each serving contains 350 milligrams of caffeine, which may be too much for some women (or smaller men). In those cases, ½ of a serving (which contains more active ingredients than a full serving of most other pre-workout supplements) works perfectly. Bottles last longer this way too! Pulse is too sweet/strong tasting for me. What should I do? If Pulse is too sweet/strong tasting for you, increase the amount of water you’re using until you find an amount that works for you. (Most people like 8 to 10 ounces.) Also, we continually tweak Pulse’s flavor profile based on customer feedback, so please let us know if you don’t like it. It helps us improve! How many servings of Pulse can I take in one day? We recommend you take only one serving of Pulse per day. Research shows that caffeine intake shouldn’t exceed 6 milligrams per kg of body weight per day (about 400 milligrams for the average person), and that most of the benefits are seen at moderate (not excessive) doses. What does the Prop65 warning on the label mean? The Prop65 warning on the label means the product contains one of 900 chemicals. The product is still safe to use and has the label because California's Proposition 65 goes well beyond the safe levels set by the Food and Drug Administration (FDA) and the Environmental Protection Agency (EPA) and requires the label by law (even when the chemical is found in trace amounts). You should not be concerned about it and don't need to be worried--Pulse is completely safe. Just because a product bears the Prop 65 label doesn’t mean it’s dangerous (for instance, just two servings of tuna puts you well over the Prop65 limit for lead).[1] * 1 https://www.researchgate.net/publication/222504258_Mercury_cadmium_and_lead_content_of_canned_Tuna_fish Is Pulse gluten-free, vegetarian, or vegan? Yes, Pulse is gluten-free, vegetarian, and vegan. View All FAQs +REFERENCES 1. Some popular pre-workouts are all-natural. Some contain the right mix of high-quality ingredients. Some provide clinically effective doses. But only Pulse checks each of these boxes. ↑ 2. Pulse doesn’t just “contain natural ingredients''—every ingredient is naturally sourced from plants and animals. Pulse contains no artificial or synthetic substances of any kind.↑ 3. Every serving of Pulse contains 15.1 grams of active ingredients that have been shown to be safe and effective in peer-reviewed scientific research.↑ 4. Every active ingredient in Pulse is backed by published scientific studies that show benefits in healthy humans.↑ 5. Pulse contains no harsh stimulants that wind you up and burn you out. Instead, it contains a 1:1 ratio of caffeine and L-theanine, which produces a smooth energy rush and comfortable comedown.↑ 6. That’s 508 pages of scientific research that shows Pulse works the way we say it does.↑ 7. While these types of chemicals may not be as dangerous as some people claim, studies suggest that regular consumption of them may indeed be harmful to our health. And that’s why you won’t find them in Pulse.↑ 8. Every bottle of Pulse is guaranteed to provide exactly what the label claims and nothing else—no heavy metals, microbes, allergens, or other contaminants.↑ 9. This means you know exactly what’s in every serving of Pulse—every dose of every ingredient—and can verify the accuracy and efficacy of the formulation.↑ 10. Before you buy a sports supplement, you should know that it's clean, safe, and transparent. And that's exactly what Labdoor's third-party testing and certification means.↑ 11. Caffeine: a double-blind, placebo-controlled study of its thermogenic, metabolic, and cardiovascular effects in healthy volunteers. Astrup A, Toubro S, Cannon S, Hein P, Breum L, Madsen J. Am J Clin Nutr. 1990;51(5):759-767. doi:10.1093/ajcn/51.5.759. ↑ 12. Effect of caffeine ingestion on one-repetition maximum muscular strength. Astorino TA, Rohmann RL, Firth K. Department of Kinesiology, CSU - San Marcos, San Marcos, CA. Eur J Appl Physiol. 2008 Jan;102(2):127-32. ↑ 13. The acute effects of a caffeine-containing supplement on strength, muscular endurance, and anaerobic capabilities. Beck TW, Housh TJ, Schmidt RJ, Johnson GO, Housh DJ, Coburn JW, Malek MH. Department of Nutrition and Health Sciences, Human Performance Laboratory, University of Nebraska-Lincoln. J Strength Cond Res. 2006 Aug;20(3):506-10. ↑ 14. Effect of caffeine on sport-specific endurance performance: a systematic review. Ganio MS, Klau JF, Casa DJ, Armstrong LE, Maresh CM. Department of Kinesiology, Human Performance Laboratory, University of Connecticut, Storrs, Connecticut, USA. J Strength Cond Res. 2009 Jan;23(1):315-24. ↑ 15. L-Theanine reduces psychological and physiological stress responses. Kimura K, Ozeki M, Juneja LR, Ohira H. Nagoya University Department of Psychology, Chikusa-ku, Nagoya, 464-8601, Japan. Biol Psychol. 2007 Jan;74(1):39-45. ↑ 16. L-theanine promotes nitric oxide production in endothelial cells through eNOS phosphorylation. Siamwala JH, Dias PM, Majumder S, Joshi MK, Sinkar VP, Banerjee G, Chatterjee S. Vascular Biology Lab, AU-KBC Research Centre, Anna University, MIT Campus, Chennai, India. J Nutr Biochem. 2013 Mar;24(3):595-605. ↑ 17. Psychological effects of dietary components of tea: caffeine and L-theanine. Bryan J. School of Psychology, University of South Australia, Adelaide, 5001, South Australia, Australia. Nutr Rev. 2008 Feb;66(2):82-90. ↑ 18. L-theanine and caffeine improve task switching but not intersensory attention or subjective alertness. Einöther SJ, Martens VE, Rycroft JA, De Bruin EA. Sensation, Perception & Behaviour, Unilever R&D Vlaardingen, Vlaardingen, The Netherlands. Appetite. 2010 Apr;54(2):406-9. ↑ 19. The effects of L-theanine on alpha-band oscillatory brain activity during a visuo-spatial attention task. Gomez-Ramirez M, Kelly SP, Montesi JL, Foxe JJ. Program in Cognitive Neuroscience and Schizophrenia, The Cognitive Neurophysiology Laboratory, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, USA. Brain Topogr. 2009 Jun;22(1):44-51. ↑ 20. l-Theanine and caffeine improve target-specific attention to visual stimuli by decreasing mind wandering: a human functional magnetic resonance imaging study. Kahathuduwa CN, Dhanasekara CS, Chin S-H, et al. Nutr Res. 2018;49:67-78. doi:10.1016/j.nutres.2017.11.002.↑ 21. Nitric oxide synthases: regulation and function (Articulo de revision). Förstermann U, Sessa WC. Eur Heart J. 2012;33(7):829-837, 837a-837d. doi:10.1093/eurheartj/ehr304.↑ 22. Vascular nitric oxide: Beyond eNOS. Zhao Y, Vanhoutte PM, Leung SWS. J Pharmacol Sci. 2015;129(2):83-94. doi:10.1016/j.jphs.2015.09.002.↑ 23. Citrulline malate enhances athletic anaerobic performance and relieves muscle soreness. Pérez-Guisado J, Jakeman PM. Department of Medicine, University of Córdoba, Córdoba, Spain. J Strength Cond Res. 2010 May;24(5):1215-22. ↑ 24. Acute citrulline malate supplementation improves upper- and lower-body submaximal weightlifting exercise performance in resistance-trained females. Glenn JM, Gray M, Wethington LN, Stone MS, Stewart RW, Moyen NE. Eur J Nutr. 2017;56(2):775-784. doi:10.1007/s00394-015-1124-6.↑ 25. Acute citrulline-malate supplementation improves maximal strength and anaerobic power in female, masters athletes tennis players. Glenn JM, Gray M, Jensen A, Stone MS, Vincenzo JL. Eur J Sport Sci. 2016;16(8):1095-1103. doi:10.1080/17461391.2016.1158321.↑ 26. Citrulline malate enhances athletic anaerobic performance and relieves muscle soreness. Pérez-Guisado J, Jakeman PM. Department of Medicine, University of Córdoba, Córdoba, Spain. J Strength Cond Res. 2010 May;24(5):1215-22. ↑ 27. Citrulline/malate promotes aerobic energy production in human exercising muscle. Bendahan D, Mattei JP, Ghattas B, Confort-Gouny S, Le Guern ME, Cozzone PJ. Centre de Résonance Magnétique Biologique et Médicale, Faculté de Médecine de la Timone, France. Br J Sports Med. 2002 Aug;36(4):282-9. ↑ 28. Oral L-citrulline supplementation enhances cycling time trial performance in healthy trained men: Double-blind randomized placebo-controlled 2-way crossover study. Suzuki T, Morita M, Kobayashi Y, Kamimura A. J Int Soc Sports Nutr. 2016;13:6. doi:10.1186/s12970-016-0117-z.↑ 29. Influence of oral beta-alanine and L-histidine supplementation on the carnosine content of the gluteus medius. Dunnett M, Harris RC. Department of Veterinary Basic Sciences, Royal Veterinary College, Hatfield, Hertfordshire, UK. Equine Vet J Suppl. 1999 Jul;(30):499-504. ↑ 30. The biological role of carnosine and its possible applications in medicine. Budzeń S, Rymaszewska J. Adv Clin Exp Med. 22(5):739-744.↑ 31. beta-Alanine supplementation augments muscle carnosine content and attenuates fatigue during repeated isokinetic contraction bouts in trained sprinters. Derave W, Ozdemir MS, Harris RC, Pottier A, Reyngoudt H, Koppo K, Wise JA, Achten E. Dept. of Movement and Sport Sciences, Ghent Univ, Belgium. J Appl Physiol. 2007 Nov;103(5):1736-43. ↑ 32. Effects of beta-alanine supplementation on the onset of neuromuscular fatigue and ventilatory threshold in women. Stout JR, Cramer JT, Zoeller RF, Torok D, Costa P, Hoffman JR, Harris RC, O'Kroy J. Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA. Amino Acids. 2007;32(3):381-6. ↑ 33. The effect of beta-alanine supplementation on neuromuscular fatigue in elderly (55-92 Years): a double-blind randomized study. Stout JR, Graves BS, Smith AE, Hartman MJ, Cramer JT, Beck TW, Harris RC. Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA. J Int Soc Sports Nutr. 2008 Nov 7;5:21. ↑ 34. Short-duration beta-alanine supplementation increases training volume and reduces subjective feelings of fatigue in college football players. Hoffman JR, Ratamess NA, Faigenbaum AD, Ross R, Kang J, Stout JR, Wise JA. Department of Health and Exercise Science, The College of New Jersey, Ewing, NJ, USA. Nutr Res. 2008 Jan;28(1):31-5. ↑ 35. Influence of beta-alanine supplementation on skeletal muscle carnosine concentrations and high intensity cycling capacity. Hill CA, Harris RC, Kim HJ, Harris BD, Sale C, Boobis LH, Kim CK, Wise JA. School of Sports, Exercise & Health Sciences, University of Chichester, Chichester, UK. Amino Acids. 2007 Feb;32(2):225-33. ↑ 36. Effect of β-alanine plus sodium bicarbonate on high-intensity cycling capacity. Sale C, Saunders B, Hudson S, Wise JA, Harris RC, Sunderland CD. Biomedical, Life and Health Sciences Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK. Med Sci Sports Exerc. 2011 Oct;43(10):1972-8. ↑ 37. Six weeks of high-intensity interval training with and without beta-alanine supplementation for improving cardiovascular fitness in women. Walter AA, Smith AE, Kendall KL, Stout JR, Cramer JT. Biophysics Laboratory, Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma, USA. J Strength Cond Res. 2010 May;24(5):1199-207. ↑ 38. Effects of beta-alanine supplementation and high-intensity interval training on endurance performance and body composition in men; a double-blind trial. Smith AE, Walter AA, Graef JL, Kendall KL, Moon JR, Lockwood CM, Fukuda DH, Beck TW, Cramer JT, Stout JR. Metabolic and Body Composition Laboratory, Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA. J Int Soc Sports Nutr. 2009 Feb 11;6:5. ↑ 39. Effects of β-alanine supplementation on exercise performance: a meta-analysis. Hobson RM, Saunders B, Ball G, Harris RC, Sale C. Biomedical, Life and Health Sciences Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, UK. Amino Acids. 2012 Jul;43(1):25-37. ↑ 40. Effects of β-alanine supplementation on performance and body composition in collegiate wrestlers and football players. Kern BD, Robinson TL. Human Performance and Physical Education Department, Adams State College, Alamosa, Colorado, USA. J Strength Cond Res. 2011 Jul;25(7):1804-15. ↑ 41. Effects of beta-alanine supplementation and high-intensity interval training on endurance performance and body composition in men; a double-blind trial. Smith AE, Walter AA, Graef JL, Kendall KL, Moon JR, Lockwood CM, Fukuda DH, Beck TW, Cramer JT, Stout JR. Metabolic and Body Composition Laboratory, Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA. J Int Soc Sports Nutr. 2009 Feb 11;6:5. ↑ 42. Effects of beta-alanine supplementation on the onset of neuromuscular fatigue and ventilatory threshold in women. Stout JR, Cramer JT, Zoeller RF, Torok D, Costa P, Hoffman JR, Harris RC, O'Kroy J. Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA. Amino Acids. 2007;32(3):381-6. ↑ 43. The effect of beta-alanine supplementation on neuromuscular fatigue in elderly (55-92 Years): a double-blind randomized study. Stout JR, Graves BS, Smith AE, Hartman MJ, Cramer JT, Beck TW, Harris RC. Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA. J Int Soc Sports Nutr. 2008 Nov 7;5:21. ↑ 44. Short-duration beta-alanine supplementation increases training volume and reduces subjective feelings of fatigue in college football players. Hoffman JR, Ratamess NA, Faigenbaum AD, Ross R, Kang J, Stout JR, Wise JA. Department of Health and Exercise Science, The College of New Jersey, Ewing, NJ, USA. Nutr Res. 2008 Jan;28(1):31-5. ↑ 45. The effect of two β-alanine dosing strategies on 30-minute rowing performance: a randomized, controlled trial. Beasley L, Smith L, Antonio J, Gordon D, Johnstone J, Roberts J. J Int Soc Sports Nutr. 2018 Dec 18;15(1):59. doi: 10.1186/s12970-018-0266-3. ↑ 46. Acute supplementation with alpha-glycerylphosphorylcholine augments growth hormone response to, and peak force production during, resistance exercise. Ziegenfuss T, Landis J, Hofheins J. J Int Soc Sports Nutr. 2008;5(Suppl 1):P15. doi:10.1186/1550-2783-5-S1-P15. ↑ 47. Cognitive improvement in mild to moderate Alzheimer’s dementia after treatment with the acetylcholine precursor choline alfoscerate: a multicenter, double-blind, randomized, placebo-controlled trial. De Jesus Moreno Moreno M. Clin Ther. 2003;25(1):178-193. ↑ 48. Glycerophosphocholine enhances growth hormone secretion and fat oxidation in young adults. Kawamura T, Okubo T, Sato K, et al. Nutrition. 2012;28(11-12):1122-1126. doi:10.1016/j.nut.2012.02.011 ↑ 49. Evaluation of the effects of two doses of alpha glycerylphosphorylcholine on physical and psychomotor performance. Journal of the International Society of Sports Nutrition. Marcus L, Soileau J, Judge LW, Bellar D. Journal of the International Society of Sports Nutrition. 2017;14:39. doi:10.1186/s12970-017-0196-5. ↑ 50. The effects of chronic betaine supplementation on exercise performance, skeletal muscle oxygen saturation and associated biochemical parameters in resistance trained men. Trepanowski JF, Farney TM, McCarthy CG, Schilling BK, Craig SA, Bloomer RJ. Cardiorespiratory/Metabolic Laboratory, The University of Memphis, Memphis, Tennessee, USA. J Strength Cond Res. 2011 Dec;25(12):3461-71. ↑ 51. Ergogenic effects of betaine supplementation on strength and power performance. Lee EC, Maresh CM, Kraemer WJ, Yamamoto LM, Hatfield DL, Bailey BL, Armstrong LE, Volek JS, McDermott BP, Craig SA. Department of Kinesiology, University of Connecticut, Storrs, CT, USA. J Int Soc Sports Nutr. 2010 Jul 19;7:27. ↑ 52. Artificial Sweeteners: History and New Concepts on Inflammation. Basson AR, Rodriguez-Palacios A, Cominelli F. Front Nutr. 2021;8:746247. Published 2021 Sep 24. doi:10.3389/fnut.2021.746247.↑ 53. Non-caloric artificial sweeteners and the microbiome: findings and challenges. Suez J, Korem T, Zilberman-Schapira G, Segal E, Elinav E. Gut Microbes. 2015;6(2):149-155. doi:10.1080/19490976.2015.1017700.↑ 54. What made Canada become a country with the highest incidence of inflammatory bowel disease: could sucralose be the culprit? Qin X. Department of Surgery, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey, USA. Can J Gastroenterol. 2011 Sep;25(9):511. ↑ 55. Artificial Sweeteners Negatively Regulate Pathogenic Characteristics of Two Model Gut Bacteria, E. coli and E. faecalis. Shil A, Chichger H. Int J Mol Sci. 2021;22(10):5228. Published 2021 May 15. doi:10.3390/ijms22105228.↑ 56. Artificial sweeteners induce glucose intolerance by altering the gut microbiota. Suez J, Korem T, Zeevi D, et al. Nature. 2014;514(7521):181-186. doi:10.1038/nature13793.↑ 57. High-intensity sweetener consumption and gut microbiome content and predicted gene function in a cross-sectional study of adults in the United States. Frankenfeld CL, Sikaroodi M, Lamb E, Shoemaker S, Gillevet PM. Ann Epidemiol. 2015;25(10):736-42.e4. doi:10.1016/j.annepidem.2015.06.083.↑ 58. Steviol glycosides from Stevia: biosynthesis pathway review and their application in foods and medicine. Yadav SK, Guleria P. CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India. Crit Rev Food Sci Nutr. 2012;52(11):988-98. ↑ 59. Antioxidant, anti-diabetic and renal protective properties of Stevia rebaudiana. Shivanna N, Naika M, Khanum F, Kaul VK. Department of Applied Nutrition, Defence Food Research Laboratory, Mysore, India. J Diabetes Complications. 2013 Mar-Apr;27(2):103-13. ↑ 60. Safety evaluation of certain food additives. World Health Organization. WHO Press; 2006. Available at: http://whqlibdoc.who.int/publications/2006/9241660546_eng.pdf. Accessed January 24, 2019. ↑ 61. Effects of Stevia rebaudiana (Bertoni) extract and N-nitro-L-arginine on renal function and ultrastructure of kidney cells in experimental type 2 Diabetes. Ozbayer C, Kurt H, Kalender S, Ozden H, Gunes HV, Basaran A, Cakmak EA, Civi K, Kalender Y, Degirmenci I. Department of Medical Biology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey. J Med Food. 2011 Oct;14(10):1215-22. ↑ 62. Toxicological significance of azo dye metabolism by human intestinal microbiota. Feng J, Cerniglia CE, Chen H. Division of Microbiology, National Center for Toxicological Research, US Food and Drug Administration, AR , USA. Front Biosci (Elite Ed). 2012 Jan 1;4:568-86. ↑ 63. Artificial food dyes and attention deficit hyperactivity disorder. Kanarek RB. Department of Psychology, Tufts University, Medford, Massachusetts, USA. Nutr Rev. 2011 Jul;69(7):385-91. ↑ 64. Meta-analysis of attention-deficit/hyperactivity disorder or attention-deficit/hyperactivity disorder symptoms, restriction diet, and synthetic food color additives. Nigg JT, Lewis K, Edinger T, Falk M. Oregon Health and Science University, Portland, OR, USA. J Am Acad Child Adolesc Psychiatry. 2012 Jan;51(1):86-97.e8. ↑ 65. Food additives and hyperactive behaviour in 3-year-old and 8/9-year-old children in the community: a randomised, double-blinded, placebo-controlled trial. McCann D, Barrett A, Cooper A, Crumpler D, Dalen L, Grimshaw K, Kitchin E, Lok K, Porteous L, Prince E, Sonuga-Barke E, Warner JO, Stevenson J. School of Psychology, Department of Child Health, University of Southampton, Southampton, UK. Lancet. 2007 Nov 3;370(9598):1560-7. ↑ 66. Effect of food azo dye tartrazine on learning and memory functions in mice and rats, and the possible mechanisms involved. Gao Y, Li C, Shen J, Yin H, An X, Jin H. Scientific and Technological College of Chemistry and Biology, Yantai Univ., Yantai, PR China. J Food Sci. 2011 Aug;76(6):T125-9. ↑ View All References SECURITY CHECK Please click the checkbox below. We apologize for the inconvenience. Some popular pre-workouts are all-natural. Some contain the right mix of high-quality ingredients. Some provide clinically effective doses. But only Pulse checks each of these boxes. Sounds Good Pulse doesn’t just “contain natural ingredients''—every ingredient is naturally sourced from plants and animals. Pulse contains no artificial or synthetic substances of any kind. Sounds Good Every serving of Pulse contains 15.1 grams of active ingredients that have been shown to be safe and effective in peer-reviewed scientific research. Sounds Good Every active ingredient in Pulse is backed by published scientific studies that show benefits in healthy humans. Sounds Good Pulse contains no harsh stimulants that wind you up and burn you out. 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