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Clinically Effective Ingredients and Doses

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Pulse Caffeine-Free Pre-Workout Supplement

Q: How do I use stim-free Pulse pre-workout?

If this is your first time using Legion stim-free Pulse, assess your individual tolerance by mixing 1 scoop with 10-12 ounces of water and consuming 15-30 minutes prior to exercise. If you experience any non-optimum effects, stop and consult your doctor. We recommend using 1 scoop 15-30 minutes prior to weight training or intense cardio, or 2 scoops (full clinical doses) for intense weight training or cardio lasting longer than 45 minutes.

Q: What type of workouts is stim-free Pulse good for?

Stim-free Pulse is good for both anaerobic and aerobic workouts. It's equally good for weightlifting, cardio, and endurance training. For benefits like increased strength and muscle endurance, take it before a weightlifting workout. For increased intensity and endurance, take it before a cardio session. No matter what type of exercise you do, stim-free Pulse helps you do it better.

Q: Is stim-free Pulse suitable for women?

Yes, stim-free Pulse is suitable for women, and they can benefit from this non-stimulant pre-workout just as much as men!

Q: Does stim-free Pulse have any side effects?

The only side effect that sometimes surprises people is a tingling or itching sensation often felt in the hands and face. This is known as paresthesia , and is a harmless side effect of beta-alanine and isn’t an allergic reaction or cause for concern. The reason for this phenomenon is that beta alanine happens to trigger certain neurons present in the skin that also produce feelings of itchiness and warmth. [1] 1 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491570/

Q: Stim-free Pulse is too sweet/strong tasting for me. What should I do?

If stim-free Pulse is too sweet/strong 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.) We continually tweak stim-free Pulse’s flavor profile based on customer feedback. Please let us know if you don’t like it so we can improve!

Q: How many servings of stim-free Pulse can I take in one day?

There’s no clear, hard limit to how many servings of stim-free Pulse you can take in one day, but there’s no good reason to take more than one-to-two servings per day.

Q: What does the Prop65 warning on the labels mean?

Our products include a Proposition 65 warning in compliance with California’s regulatory guidelines, which are among the most stringent and sweeping in the world. A Proposition 65 warning does not indicate whether a product is safe or unsafe. Rather, Proposition 65 is a consumer notification law in California that requires warnings to inform consumers about the presence of one or more of over 900 substances in various types of products. These substances include naturally occurring and ubiquitous compounds, even when present at levels below those known to cause harm.

Q: Is stim-free Pulse gluten-free, vegetarian, or vegan?

Yes, stim-free Pulse is gluten-free, vegetarian, and vegan.

$44.99$35.99$1.80 per serving

4.7 21,286 Verified Reviews

4.67 out of 5

5 star 82%

4 star 8%

3 star 3%

2 star 1%

1 star 2%

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Pulse undefined
Caffeine-Free Pre-Workout Supplement

21,286 Verified Reviews

$35.99

($1.80/serving)

⌛ This flavor is on sale! Save 20%!

Get the only[1] Some popular stim-free pre-workouts are naturally sweetened and flavored. Some contain the right mix of high-quality ingredients. Some provide clinically effective doses. But only Pulse checks each of these boxes. naturally sweetened and flavored[2] 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. That’s why we use the natural sweeteners stevia and erythritol instead. stimulant-free pre-workout supplement with clinically effective doses[3] Every serving of Pulse contains 14.4 grams of active ingredients that have been shown to be safe and effective in peer-reviewed scientific research. of 4 ingredients scientifically shown[4] Every active ingredient in Pulse is backed by published scientific studies that show benefits in healthy humans. to increase strength and stamina and reduce fatigue and without the jitters, upset stomach, or post-workout crash.[5] Stim-free Pulse contains no stimulants of any kind, so it won’t wind you up and burn you out.

45 peer-reviewed scientific studies support Pulse’s combination of ingredients and doses[6]That’s 436 pages of scientific research that shows Pulse works the way we say it does.
Contains no caffeine, artificial sweeteners, flavors, food dyes, or other unnecessary 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.
Tested 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.

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Is Pulse “PRs in a bottle?”

No.

Will it add another plate or two to the bar?

Absolutely not.

But will Pulse 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 with globally sourced ingredients in NSF-certified and FDA-inspected facilities that adhere to Current Good Manufacturing Practice standards

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 naturally sweetened and flavored pre-workout supplements in the world (over 2 million bottles sold and counting!).

Is Pulse “PRs in a bottle?”

No.

Will it add another plate or two to the bar?

Absolutely not.

But is Pulse the only[1] Some popular stim-free pre-workouts are naturally sweetened and flavored. Some contain the right mix of high-quality ingredients. Some provide clinically effective doses. But only Pulse checks each of these boxes. naturally sweetened and flavored[2] While artificial sweeteners may not be as dangerous as some people claim, studies suggest that regular consumption of them may indeed be harmful to our health. That’s why we use the natural sweeteners stevia, monk fruit, and erythritol instead. stimulant-free pre-workout supplement with clinically effective doses[3] Every serving of Pulse contains 14.4 grams of active ingredients that have been shown to be safe and effective in peer-reviewed scientific research. of 4 ingredients scientifically shown[4] Every active ingredient in Pulse is backed by published scientific studies that show benefits in healthy humans. to increase strength and stamina and reduce fatigue and without the jitters, upset stomach, or post-workout crash?[5] Stim-free Pulse contains no stimulants of any kind, so it won’t wind you up and burn you out.

And will it help you train harder, go longer, and finish stronger?

Yes. Or your money back.

45 peer-reviewed scientific studies support Pulse’s ingredients and doses[6] That’s 436 pages of scientific research that shows Pulse works the way we say it does.
Contains no caffeine, artificial sweeteners, flavors, food dyes, or other unnecessary 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.
Tested for purity and potency in a state-of-the-art ISO 17025 accredited lab[8] 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.
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 with globally sourced ingredients in NSF-certified and FDA-inspected facilities that adhere to Current Good Manufacturing Practice standards

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.

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.

Legion Stim-Free Pulse Ingredients (14.4 grams per serving)

Citrulline Malate (8 grams per serving)

Citrulline malate is the amino acid L-citrulline bound with malic acid, a 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.[11][12]

This is why research shows that supplementation with citrulline malate . . .

Improves muscle endurance[13][14][15]
Relieves muscle soreness[16]
Improves aerobic performance[17][18]

The clinically effective dose of citrulline malate is between 4 and 10 grams.

Beta-Alanine (3.6 grams per serving)

Alpha-GPC (300 milligrams per serving)

Betaine (2.5 grams per serving)

Naturally Sweetened & Flavored

No Artificial Food Dyes, Fillers, or Other Unnecessary Junk

Third-Party Lab Tested for Potency & Purity

See how Legion stim-free Pulse compares to the rest.

Active Ingredients
Clinically Effective Ingredients & Doses
Citrulline Malate
Beta-Alanine
Betaine
Alpha-GPC
Naturally Sweetened
& Flavored
Third-Party Lab Tested
Labdoor Ranking
Price Per Serving

Legion Stim-Free
Pulse Pre-Workout
14,400 mg
per serving
8,000 mg
per serving
3,600 mg
per serving
2,500 mg
per serving
300 mg
per serving
A-
$1.80

Pre-Kaged
Stimulant Free
23,050 mg
per serving
6,500 mg
per serving
1,600 mg
per serving
2,500 mg
per serving
$1.99

PEScience
High Volume
10,750 mg
per serving
4,000 mg
per serving
$1.94

C4
NO3 Ultimate
7,180 mg
per serving
4,000 mg
per serving
$1.99

The #1 brand of naturally sweetened sports supplements.

We’ve sold over 5 million bags and bottles to over 1 million customers in 169 countries who have left us over 45,000 5-star reviews.

Clinically Effective Ingredients and Doses

Every ingredient, form, and dose in Pulse is backed by peer-reviewed scientific research demonstrating clear benefits in healthy humans.

Naturally Sweetened and Flavored

Pulse is naturally sweetened with stevia and erythritol and naturally flavored with extracts from fruit, vegetables, plants and other foods.

Total Label Transparency

We clearly list the dose of each ingredient in Pulse on the label—no proprietary blends or hidden ingredients—so you can verify our formulation’s validity and effectiveness.

Third-Party Lab Tested by Labdoor™

Pulse is tested for purity and potency in an ISO 17025-accredited third-party laboratory, and independently certified to contain no contaminants or banned substances by Labdoor™.

Made in the USA

Pulse is made in America with globally sourced ingredients in NSF-certified, FDA-inspected facilities that adhere to Current Good Manufacturing Practice (cGMP) standards.

"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.

"Legion Pulse is the best pre-workout of 2024."
"Legion is science-based at its core. Not only do they dose all of their products based on the clinical doses proven to be effective by scientific studies, they go above and beyond the their competitors by funding new research."

Dr. Bill Campbell, PhD
Professor of Exercise Science at University of South Florida
"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. Spencer Nadolsky, MD
Board-Certified Family Medicine Physician and a Diplomate of the American Board of Obesity Medicine
"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."

Sal Di Stefano, Justin Andrews, and Adam Schafer
Hosts of The Mind Pump Podcast
"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."

Jordan Syatt
Strength and Nutrition 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."

Menno Henselmans, MS
Founder of Bayesian Bodybuilding, Published Scientist, and Physique Coach
"Legion's customers are getting some of the best sports supplements on the market."
"Legion Pulse is the best overall pre-workout, especially for energy and focus."
"Legion Pulse is the best pre-workout of 2024."
"Legion is science-based at its core. Not only do they dose all of their products based on the clinical doses proven to be effective by scientific studies, they go above and beyond the their competitors by funding new research."

Dr. Bill Campbell, PhD
Professor of Exercise Science at University of South Florida

Frequently Asked Questions

How do I use stim-free Pulse pre-workout?

What type of workouts is stim-free Pulse good for?

Is stim-free Pulse suitable for women?

Does stim-free Pulse have any side effects?

Stim-free Pulse is too sweet/strong tasting for me. What should I do?

How many servings of stim-free Pulse can I take in one day?

What does the Prop65 warning on the labels mean?

Is stim-free Pulse gluten-free, vegetarian, or vegan?

View All FAQs

+References

Some popular stim-free pre-workouts are naturally sweetened and flavored. Some contain the right mix of high-quality ingredients. Some provide clinically effective doses. But only Pulse checks each of these boxes. ↑

While artificial sweeteners may not be as dangerous as some people claim, studies suggest that regular consumption of them may indeed be harmful to our health. That’s why we use the natural sweeteners stevia, monk fruit, and erythritol instead.↑

Every serving of Pulse contains 14.4 grams of active ingredients that have been shown to be safe and effective in peer-reviewed scientific research.↑

Every active ingredient in Pulse is backed by published scientific studies that show benefits in healthy humans.↑

Stim-free Pulse contains no stimulants of any kind, so it won't wind you up and burn you out.↑

That’s 436 pages of scientific research that shows Pulse works the way we say it does.↑

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 we don’t put any of them into our products.↑

Every bottle of Pulse is guaranteed to provide exactly what the label claims and nothing else—no heavy metals, microbes, allergens, or other contaminants.↑

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. 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.↑

12. 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.↑

13. 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. ↑

14. 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.↑

15. 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.↑

16. 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. ↑

17. 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. ↑

18. 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.↑

19. 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. ↑

20. The biological role of carnosine and its possible applications in medicine.

Budzeń S, Rymaszewska J. Adv Clin Exp Med. 22(5):739-744.↑

21. 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. ↑

22. 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. ↑

23. 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. ↑

24. 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. ↑

25. 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. ↑

26. 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. ↑

27. 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. ↑

28. 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. ↑

29. 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. ↑

30. 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. ↑

31. Effects of beta-alanine supplementation and high-intensity interval training on endurance performance and body composition in men; a double-blind trial.

32. Effects of beta-alanine supplementation on the onset of neuromuscular fatigue and ventilatory threshold in women.

33. The effect of beta-alanine supplementation on neuromuscular fatigue in elderly (55-92 Years): a double-blind randomized study.

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. 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. ↑

36. 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. ↑

37. 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. ↑

38. 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 ↑

39. 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. ↑

40. 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. ↑

41. 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. ↑

42. 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.↑

43. 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.↑

44. 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. ↑

45. 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.↑

46. 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.↑

47. 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.↑

48. 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. ↑

49. 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. ↑

50. 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. ↑

51. 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. ↑

52. 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. ↑

53. 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. ↑

54. 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. ↑

55. 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. ↑

56. 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. ↑

57.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491570/↑

View All References

Pulse Caffeine-Free Pre-Workout Supplement

Pulse undefined Caffeine-Free Pre-Workout Supplement

$35.99

Legion Stim-Free Pulse Ingredients (14.4 grams per serving)

Citrulline Malate (8 grams per serving)

Beta-Alanine (3.6 grams per serving)

Alpha-GPC (300 milligrams per serving)

Betaine (2.5 grams per serving)

Naturally Sweetened & Flavored

No Artificial Food Dyes, Fillers, or Other Unnecessary Junk

Third-Party Lab Tested for Potency & Purity

See how Legion stim-free Pulse compares to the rest.

Legion Stim-Free Pulse Pre-Workout

Pre-KagedStimulant Free

PEScienceHigh Volume

C4NO3 Ultimate

The #1 brand of naturally sweetened sports supplements.

Clinically Effective Ingredients and Doses

Naturally Sweetened and Flavored

Total Label Transparency

Third-Party Lab Tested by Labdoor™

Made in the USA

"No Return Necessary"Money-Back Guarantee

Dr. Bill Campbell, PhD

Dr. Spencer Nadolsky, MD

Sal Di Stefano, Justin Andrews, and Adam Schafer

Jordan Syatt

Menno Henselmans, MS

Dr. Bill Campbell, PhD

Frequently Asked Questions

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Pulse undefined
Caffeine-Free Pre-Workout Supplement

Legion Stim-Free
Pulse Pre-Workout

Pre-Kaged
Stimulant Free

PEScience
High Volume

C4
NO3 Ultimate

"No Return Necessary"
Money-Back Guarantee

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Want to save 50% on your order of Legion supplements?

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Start shopping to show it some love!

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