Our "No Return Necessary"
Money-Back Guarantee

If you don’t like something of ours, guess what happens next?

No, we don’t request you deliver it to a PO box in the Gobi Desert by carrier pigeon. Nor do we ask you to fill a cursed inkwell with orc’s blood and demon saliva and then use it to complete reams of return forms written in ancient Cyrillic script.

We just . . . wait for it . . . give you your money back. Holy moo cows. And that means you can say "yes" now and decide later.

Will Performance Surge give you skin-tearing pumps, laser-like focus, and superhuman strength and power? No.

Will it at least add another plate or two to the bar? Absolutely not.

But will Performance Surge help you train harder, go longer, and finish stronger without a crash or other unwanted side effects? Yes. Or your money back.

  • Total formulation transparency (no proprietary blends)[8] This means you know exactly what’s in every serving of Performance Surge—every dose of every ingredient—and can verify the accuracy and efficacy of the formulation.
  • Made in the USA with globally sourced ingredients in NSF-certified and FDA-inspected and cGMP-compliant facilities
  • Backed by our “No Return Necessary” money-back guarantee that works like this: If you don’t absolutely love Performance Surge, just let us know, and we’ll give you a full refund on the spot. No forms or return necessary.

So order now, try Performance Surge risk free, and see for yourself why we believe it’s the perfect stimulant-free alternative (or addition) to a pre-workout supplement.

Will Performance Surge give you skin-tearing pumps, laser-like focus, and superhuman strength and power? No.

Will it at least add another plate or two to the bar? Absolutely not.

But is Performance Surge the only[1] Some popular performance supplements are all-natural. Some contain the right mix of high-quality ingredients. Some provide clinically effective doses. But only Performance Surge checks each of these boxes. natural[2] Performance Surge doesn’t just “contain natural ingredients''—every ingredient is naturally sourced from plants and animals. Performance Surge contains no artificial or synthetic substances of any kind. performance supplement with clinically effective doses[3] Every serving of Performance Surge contains 1.35 grams of active ingredients that have been shown to be safe and effective in peer-reviewed scientific research. of three ingredients scientifically shown[4] Each active ingredient in Performance Surge is backed by published scientific studies that show benefits in healthy humans. to increase power, strength, stamina, and blood flow to the muscles?

And will it help you train harder, go longer, and finish stronger without a crash or other unwanted side effects?

Yes. Or your money back.

  • 23 peer-reviewed scientific studies support Performance Surge’s combination of ingredients and doses[5] That’s 216 pages of scientific research that shows Performance Surge works exactly like we say it does.
  • Contains no artificial sweeteners, flavors, food dyes, or other chemical junk[6] 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 Performance Surge.
  • Analyzed for purity and potency in a state-of-the-art ISO 17025 accredited lab[7] Every bottle of Performance Surge 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)[8] This means you know exactly what’s in every serving of Performance Surge—every dose of every ingredient—and can verify the accuracy and efficacy of the formulation.
  • Made in the USA with globally sourced ingredients in NSF-certified and FDA-inspected and cGMP-compliant facilities

Performance Surge is also backed by our “No Return Necessary” money-back guarantee that works like this:

If you don’t absolutely love Performace Surge, just let us know, and we’ll give you a full refund on the spot. No forms or return necessary.

So order now, try Performance Surge risk free, and see for yourself why we believe it’s the perfect stimulant-free alternative (or addition) to a pre-workout supplement.

Ingredients (1.35 grams per serving)

KSM-66 Ashwagandha Extract (600 milligrams per serving)

Ashwagandha root extract is a substance derived from a plant root commonly used in Ayurvedic medicine. It’s known as an adaptogen, which is a compound that causes an imperceivable level of stress in the body that trains it to better handle future stresses.

Research shows that supplementation with ashwagandha root extract . . .

  • Increases power and strength[9]
  • Reduces cortisol levels from stress[10][11]
  • Lowers feelings of stress and anxiety[12][13][14]
  • Helps restore lost fertility in men[15]
  • Improves immune system function[16]
  • Increases cardiovascular endurance[17]
  • Protects against pigments that accumulate during Alzheimer’s disease and is thought to have a therapeutic effect in those with the disease[18][19]

The clinically effective dose of ashwagandha root extract is between 50 and 500 milligrams of the patented KSM-66® brand, with a few instances of over 5,000 milligrams of raw powder being used acutely.

Caffeine

PeakATP® (450 milligrams per serving)

Adenosine triphosphate (ATP) is the most basic form of cellular energy in the body. It’s obtained through the conversion of carbohydrates and fat, and it fuels the myriad functions and processes that sustain life and activity, including metabolism and muscle contraction.

PeakATP® is a form of ATP obtained from the glucose in corn that’s chemically identical to what our body produces and thus is available for immediate use.

Research shows that supplementation with PeakATP® . . .

  • Improves blood flow to muscles during exercise[20]
  • Increases muscular endurance[21][22]
  • Reduces perceived exertion[23]

The clinically effective dose of PeakATP® is 400 milligrams.

L-Theanine

Alpha-GPC 50% (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.

Research shows supplementation with alpha-GPC . . .

  • Increases power output[24]
  • Mitigates cognitive decline as we age[25]
  • Increases growth hormone levels[26]

The clinically effective dose of alpha-GPC is between 150 and 1,200 milligrams, with 250-to-600 milligrams sufficient for performance and cognitive benefits and higher doses required for affecting dementia.[27]

L-Theanine

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.[28][29][30][31][32][33]

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, enhanced cholesterol profile, lower inflammation levels, and more.[34][35][36][37]

No Artificial Food Dyes or Other Chemical Junk

No Artificial Food Dyes or Other Chemical Junk

As with artificial sweeteners, artificial food dyes aren’t a hazard per se, but studies show they can cause negative effects in some people, including gastrointestinal toxicity and behavioral disorders.[38][39][40][41][42]

That’s why we use natural coloring derived from fruits and other foods, as well as natural flavoring.

No Artificial Food Dyes or Other Chemical Junk

Lab Tested for Potency & Purity

Every bottle of Performance Surge 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.

Lab Tested for Potency & Purity
Performance Surge COA

The #1 brand of all-natural sports supplements.

Over 4,000,000 bottles sold to over 800,000 customers who have left us over 45,000 5-star reviews.

Natural Ingredients
No Chemical Junk

Performance Surge doesn’t just “contain natural ingredients”—every ingredient is naturally sourced. We don’t use artificial or synthetic substances of any kind.

Clinically Effective Doses
Clinically Effective Ingredients & Doses

Every ingredient and dose (important!) in Performance Surge is backed by peer-reviewed scientific research demonstrating clear benefits.

Naturally Sweetened & Flavored
Naturally Sweetened & Flavored

Performance Surge is naturally sweetened and flavored with healthy, plant-based sweeteners and flavors.

Lab Tested
Lab Tested

Performance Surge is tested by third-party labs for heavy metals, microbes, allergens, and other contaminants to ensure it meets FDA purity standards.

Made in USA
Made in USA with Globally Sourced Ingredients

Performance Surge is proudly made in America in NSF-certified and FDA-inspected facilities in accordance with the Current Good Manufacturing Practice (cGMP) regulations.

100% Money-Back-Guarantee
"No Return Necessary"
Money-Back Guarantee

If you don't absolutely love Performance Surge, you get a prompt and courteous refund. No forms or returns necessary.

Trusted by scientists, doctors, and everyday fitness folk alike.

Previous
  • Dr. Spencer Nadolsky, MD

    Board-Certified Family Medicine Physician, a Diplomate of the American Board of Obesity Medicine, and Legion Advisory Board Member

    "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."

  • Menno Henselmans, MS

    Founder of Bayesian Bodybuilding, Published Scientist, Physique Coach, and Legion Advisory Board Member

    "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."

  • Dr. Bill Campbell, PhD

    Professor of Exercise Science at University of South Florida and Legion Advisory Board Member

    "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."

  • 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."

Next

Frequently Asked Questions

How do I use Performance Surge?
Why is Performance Surge unflavored?
Will Performance Surge improve my physical performance?
Can I take Performance Surge every day?
How Does Performance Surge Differ from Pulse? Can I take both at the same time?
Does Performance Surge have any side effects?
Is Performance Surge vegan?
What does the Prop65 warning on the labels mean?

+References

9. Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial.

Wankhede S, Langade D, Joshi K, Sinha SR, Bhattacharyya S. J Int Soc Sports Nutr. 2015;12:43. Published 2015 Nov 25. doi:10.1186/s12970-015-0104-9

10. Augmentation and proliferation of T lymphocytes and Th-1 cytokines by Withania somnifera in stressed mice.

Khan B, Ahmad SF, Bani S, et al. Int Immunopharmacol. 2006;6(9):1394-1403. doi:10.1016/j.intimp.2006.04.001

12. A double-blind, placebo-controlled evaluation of the anxiolytic efficacy ff an ethanolic extract of withania somnifera.

Andrade C, Aswath A, Chaturvedi SK, Srinivasa M, Raguram R. Indian J Psychiatry. 2000;42(3):295-301.

13. Naturopathic care for anxiety: a randomized controlled trial ISRCTN78958974.

Cooley K, Szczurko O, Perri D, et al. PLoS One. 2009;4(8):e6628. Published 2009 Aug 31. doi:10.1371/journal.pone.0006628.

15. Clinical Evaluation of the Spermatogenic Activity of the Root Extract of Ashwagandha (Withania somnifera) in Oligospermic Males: A Pilot Study.

Ambiye VR, Langade D, Dongre S, Aptikar P, Kulkarni M, Dongre A. Evid Based Complement Alternat Med. 2013;2013:571420. doi:10.1155/2013/571420.

16. In vivo effects of Ashwagandha (Withania somnifera) extract on the activation of lymphocytes.

Mikolai J, Erlandsen A, Murison A, et al. J Altern Complement Med. 2009;15(4):423-430. doi:10.1089/acm.2008.0215.

17. Effects of eight-week supplementation of Ashwagandha on cardiorespiratory endurance in elite Indian cyclists.

Shenoy S, Chaskar U, Sandhu JS, Paadhi MM. J Ayurveda Integr Med. 2012;3(4):209-214. doi:10.4103/0975-9476.104444.

18. Withania somnifera reverses Alzheimer's disease pathology by enhancing low-density lipoprotein receptor-related protein in liver.

Sehgal N, Gupta A, Valli RK, et al. Proc Natl Acad Sci U S A. 2012;109(9):3510-3515. doi:10.1073/pnas.1112209109.

19. Ashwagandha (Withania somnifera) Reverses β-Amyloid1-42 Induced Toxicity in Human Neuronal Cells: Implications in HIV-Associated Neurocognitive Disorders (HAND).

Kurapati KRV, Atluri VSR, Samikkannu T, Nair MPN. PLoS One. 2013;8(10):e77624. doi:10.1371/JOURNAL.PONE.0077624.

20. Effects of oral ATP supplementation on anaerobic power and muscular strength.

Jordan AN, Jurca R, Abraham EH, et al. Med Sci Sports Exerc. 2004;36(6):983-990. doi:10.1249/01.mss.0000128198.97260.8b.

21 A Single Dose of Oral ATP Supplementation Improves Performance and Physiological Response During Lower Body Resistance Exercise in Recreational Resistance-Trained Males.

Freitas MC, Cholewa JM, Gerosa-Neto J, et al. J Strength Cond Res. 2019;33(12):3345-3352. doi:10.1519/JSC.0000000000002198.

22. Dose Response of Acute ATP Supplementation on Strength Training Performance.

Dos Santos Nunes de Moura HP, Jäger R, Purpura M, Rathmacher JA, Fuller JC Jr, Rossi FE. Front Sports Act Living. 2021;3:780459. Published 2021 Dec 8. doi:10.3389/fspor.2021.780459.

23. Dose Response of Acute ATP Supplementation on Strength Training Performance.

Dos Santos Nunes de Moura HP, Jäger R, Purpura M, Rathmacher JA, Fuller JC Jr, Rossi FE. Front Sports Act Living. 2021;3:780459. Published 2021 Dec 8. doi:10.3389/fspor.2021.780459.

24. 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.

26. 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

27. 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.

28. 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.

29. 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.

30. 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.

31. 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.

32. 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.

33. 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.

34. 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.

35. 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.

36. 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.

37. 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.

38. 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.

39. 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.

40. 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.

41. 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.

42. 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.