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154 reviews


Many pre-workouts are long on promises, but short on results. Outwork Nutrition Pre-Workout is the opposite; no proprietary blends, no unfamiliar ingredients, and no bogus claims. Each ingredient is included for a specific purpose and backed by peer-reviewed scientific research at the proper dose.

Put in the work and reap the rewards - train harder, longer, and more effectively with Outwork Nutrition Pre-Workout.*

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Pre-Workout Benefits

The number one goal of Outwork Pre-Workout is to help you have more effective workouts - not just once, but every time. Increased consistent performance translates to more PRs, more reps, and more volume, so you can build more muscle and improve body composition over time.*

Outwork Pre-Workout contains ingredients that have been demonstrated to decrease fatigue during anaerobic and aerobic exercise, as well as increase power output and strength. In addition to physical performance, Outwork Pre-Workout enhances your mental performance by supporting focus and cognitive function.*

Outwork Pre-Workout can help:

• Support lean body mass*

• Reduce excessive muscle damage*

• Increase blood flow and nitric oxide production, leading to a better pump and more nutrients to your muscles*

• Modestly increase fat oxidation*

• Improve subjective feelings of well-being, potentially allowing you to train harder*


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Citrulline Malate

Effective Dosage
  • In humans, supplementation of 6 g of CM a day for 15 days led to a significant reduction in sensation of fatigue, an increase in the rate of oxidative ATP production during exercise, and an increase in post exercise recovery. [1]
Mechanisms of Action
  • Citrulline malate is a non-essential amino acid part of the ureogenesis cycle. Excess availability of CM enables the acceleration of this cycle, thereby facilitating the clearance of ammonium from the blood and tissues, which is a major fatigue factor. CM does so by stimulating glycolysis while blocking the aerobic utilization of pyruvate and recycling itself in the direction of gluconeogenesis. This results in less lactic acid accumulation and fatigue. [2]
Performance Components
  • Citrulline malate increases nitric oxide production and reduces muscular fatigue through the reduction of lactic acid and ammonia in blood and tissue. [1]
  • Citrulline malate has been shown to significantly increase performance during upper and lower body multiple bout resistance exercise performance. [3]
  • Improves oxidative metabolism and exercise performance in healthy adults and enhances post exercise muscle protein synthesis. [1][4]


Effective Dosage 

  • On a total gram per day basis, beta-alanine dosing ranges from 2.4 to 6.4 g per day. [5][7] Other studies have broken down beta-alanine supplementation into 4 equal doses of 1.6 g per dosage. [6][8] 

Mechanism of Action

  • Beta-Alanine is a non-essential amino acid synthesized in the liver and taken up into skeletal muscle to yield carnosine, a histidine containing dipeptide. Carnosine acts as an intracellular hydrogen ion buffer to high intensity exercise, antioxidant and regulates muscle contractility. [5] However, it cannot be synthesized in skeletal muscle without Beta-Alanine acting as the rate limiting precursor. In isolated muscle, the absence of carnosine as a buffering agent leads to fatigue due to increased acidosis. Therefore, high levels of skeletal muscle carnosine is positively associated with anaerobic exercise performance. [7]

Performance Components

  • Beta-Alanine improves muscle buffering capacity leading to improved resistance training quality by increasing the number of repetitions that can be performed at a given intensity of training. [6]
  • Beta-alanine delays the onset of fatigue by reducing muscle acidosis. [6]
  • Increases peak power output in high intensity exercise. [6][8]


Mechanism of Action

  • Caffeine is rapidly absorbed through the body’s gastrointestinal tract and moves through the cellular membranes in a highly efficient manner. It is metabolized by the liver and through enzymatic actions resulting in several metabolites, including paraxanthine and theobromine. [9] Caffeine appears in the bloodstream as quickly as 15-45 minutes after consumption with peak concentrations evident 60 minutes post consumption. Caffeine crosses the blood brain barrier with little difficulty resulting in a primary site of action in the central nervous system (CNS) by altering specific signaling pathways. Caffeine use during exercise acts to decrease the body's reliance on glycogen utilization and increases its dependence on free fatty acid mobilization. Additionally, caffeine supplementation increases serum beta-endorphin concentrations and leads to decreased pain perception. [9] The body then excretes caffeine and its metabolites through the kidneys. Due to caffeine’s half life, circulating concentrations decrease by 50-75% within 3-6 hours after consumption. [9]

Performance Components

  • Increases lipolysis and the body’s dependance on free fatty acid mobilization. [9][10]
  • Increases energy expenditure through its thermogenic stimulation. [9]
  • Enhances cognitive performance through increased vigilance and alertness. [9]


Effective Dosage

  • Rhodiola supplementation of 200-680 mg/day has been shown to improve physical performance while a dosage between 100-576 mg/day may reduce mental fatigue. [11]

Mechanism of Action

  • Rhodiola is a medicinal plant which contains adaptogenic and biologically active substances in its root, including flavonoids and phenolic glycosides. An adaptogen is a natural herbal substance that helps the body adapt and resist damage caused by stress. The adaptogenic properties of rhodiola are attributed to its regulation of the hypothalamus pituitary-adrenal (HPA) axis and key mediators in the body’s stress response such as cortisol. [12]

Performance Components

  • Shown to reduce oxidative stress in blood, liver and skeletal muscle [11] (animal study).
  • Increases cognitive and neural performance [11] (in healthy males).
  • Increases overall health in mentally fatigued populations. [11]

L-DOPA (from Mucuna Pruriens)

Effective Dosage

  • 100 mg of L-dopa is effective in increasing mood in healthy individuals. [13]

Mechanism of Action

  • The amino acid L-3,4-dihydroxyphenylalanine (L-DOPA) is a metabolite of L-tyrosine and the precursor to dopamine. L-dopa crosses the blood brain barrier where it is synthesized to dopamine in the central and peripheral nervous systems. [14] Mucuna Pruriens are a naturally occurring herbal supplement containing adaptogenic properties and high levels of L-dopa. They are typically referred to as the dopa bean. [15] Together they act as a nootropic agent to lower stress, improve mood, reduce anxiety, improve focus and boost libido. [16]

Performance Components

  • May improve cognitive function and mental alertness. [17][18]
  • Boosts libido and motivation. [19]
  • Decreases stress levels. [15]


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1. Bendahan, D, Mattei, JP, Ghattas, B, Confort-Gouny, S, Le Guern, ME, and Cozzone, PJ. Citrulline/malate promotes aerobic energy production in human exercising muscle. Br J Sports Med 36: 282-289, 2002.

2. Pérez-Guisado J, Jakeman PM. Citrulline malate enhances athletic anaerobic performance and relieves muscle soreness. J Strength Cond Res. 2010;24(5):1215-1222. doi:10.1519/JSC.0b013e3181cb28e0

3. Glenn JM, Gray M, Wethington LN, Stone MS, Stewart RW Jr, Moyen NE. Acute citrulline malate supplementation improves upper- and lower-body submaximal weightlifting exercise performance in resistance-trained females. Eur J Nutr. 2017;56(2):775–84

4. Bailey SJ, Blackwell JR, Lord T, Vanhatalo A, Winyard PG, Jones AM. l-citrulline supplementation improves O2 uptake kinetics and high-intensity exercise performance in humans. Journal of applied physiology (Bethesda, Md.: 1985). 2015;119(4):385-395.

5. Culbertson JY, Kreider RB, Greenwood M, Cooke M. Effects of beta-alanine on muscle carnosine and exercise performance: a review of the current literature. Nutrients. 2010;2(1):75-98

6. Hobson RM, Saunders B, Ball G, Harris RC, Sale C. Effects of [beta]-alanine supplementation on exercise performance: A meta-analysis. Amino Acids. 2012;43(1):25-37.

7. Hoffman JR. CREATINE AND [beta]-ALANINE SUPPLEMENTATION IN STRENGTH/POWER ATHLETES. Current Topics in Nutraceuticals Research. 2010;8(1):19-31.

8. Kelly V. [Beta]-alanine: Performance effects, usage and side effects. Br J Sports Med. 2018;52(5):311.

9. Goldstein ER, Ziegenfuss T, Kalman D, et al. International society of sports nutrition position stand: Caffeine and performance. Journal of the International Society of Sports Nutrition. 2010;7:5.

10. Ivy JL, Costill DL, Fink WJ, Lower RW: Influence of caffeine and carbohydrate feedings on endurance performance. Med Sci Sports Exerc 1979, 11:6-11.

11. Ishaque S, Shamseer L, Bukutu C, Vohra S. Rhodiola rosea for physical and mental fatigue: A systematic review. BMC Complementary and Alternative Medicine. 2012;12:70.

12. McLean W. Reviews of articles on medicinal herbs. Australian Journal of Herbal and Naturopathic Medicine. 2018;30(4):191.

13. Wittmann BC, D'Esposito M. Levodopa administration modulates striatal processing of punishment-associated items in healthy participants. Psychopharmacology (Berl). 2015;232(1):135-144.

14. Gandhi KR, Saadabadi A. Levodopa (L-Dopa) [Updated 2020 Apr 23]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-.

15. Hang L, Basil AH, Lim K. Nutraceuticals in parkinson's disease. Neuromolecular Medicine. 2016;18(3):306-321.

16. Lampariello LR, Cortelazzo A, Guerranti R, Sticozzi C, Valacchi G. The Magic Velvet Bean of Mucuna pruriens. J Tradit Complement Med. 2012;2(4):331-339.

17. Knecht S, Breitenstein C, Bushuven S, et al. Levodopa: faster and better word learning in normal humans. Ann Neurol. 2004;56(1):20-26.

18. Bliwise DL, Trotti LM, Wilson AG, et al. Daytime alertness in Parkinson's disease: potentially dose-dependent, divergent effects by drug class. Mov Disord. 2012;27(9):1118-1124.

19. Shukla KK, Mahdi AA, Ahmad MK, Shankhwar SN, Rajender S, Jaiswar SP. Mucuna pruriens improves male fertility by its action on the hypothalamus-pituitary-gonadal axis. Fertil Steril. 2009;92(6):1934-1940.

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Better Together

Outwork Pre-Workout is formulated to work synergistically with Outwork Recovery. Both work well as standalone products, but they work even better together because of their complementary ingredients.

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    Malissa S.
    United States
    I recommend this product


    Love all the flavors. The feeling is awesome!

    Dustin A.
    United States United States
    I recommend this product

    So good!! Thank you for making this product!

    Great!!! This is the best pre-workout I've used. You can tell it's so much more than caffeine. And the caffeine doesn't hit you all at once which is so nice! I can sip on it slowly about 30 minutes out and feel it all throughout my workout. It's not magic but it is so much better than anything I've ever tried. It really does help you get a couple more reps and maybe 1 more set if it feels right or 5-10 more pounds. And the reps and sets just feel better, better pumps, feel and energy! Thank you so much for making this product!

    Alec L.
    United States United States
    I recommend this product

    Good stuff!

    You can acutely feel the impact of this pre workout.

    United States United States
    I recommend this product

    Better than pre workouts at gnc!

    I didn't order my next batch in time so I had to run to gnc in the meantime until my order came in and wow do I appreciate outwork nutrition pre workout even more now!

    Mario T.
    United States United States
    I recommend this product

    Just right

    It doesn’t give me the over stimulation that some pre workouts out there do. Just right for me.