The Science

Evidence-based. Performance-driven.

Creatine is one of the most extensively studied dietary supplements in the world. Its benefits are supported by decades of research across strength, performance, and everyday wellness. Here’s what the science actually shows.

What Is Creatine?

Creatine is a naturally occurring compound synthesized from essential amino acids. It is stored primarily in skeletal muscle and plays a critical role in regenerating the body’s primary energy source during high-intensity activity. While the body produces small amounts, research consistently shows that supplementation is the most effective way to optimize these internal stores for peak performance.

Physical Performance & Training Capacity

Creatine supplementation is strongly associated with improved performance during high-intensity activity. By supporting energy regeneration at a cellular level, it allows for:
  • Greater Power Output: Support for strength and explosive movement.
  • Improved Capacity: Helping you get more out of every training session.
  • Efficient Recovery: Supporting the body’s ability to bounce back between efforts.

Mental Energy & Cognitive Support

Creatine isn’t just for muscles, it also plays a vital role in brain energy metabolism. Research suggests that supplementation may support cognitive clarity and mental resilience, particularly during times of increased demand or environmental stress. These effects stem from improved energy availability within neural tissues.

Supporting Vitality Through Every Stage

Maintaining physical resilience is a key part of staying active and independent as we age. Research has shown that when combined with a consistent lifestyle, creatine helps:
  • Support Physical Resilience: Maintain strength and active movement.
  • Improve Functional Performance: Support the balance and capacity needed for daily life.
  • Enhance Long-Term Vitality: A proactive foundation for staying capable and strong for years to come.

Dosing: Simple, Effective, Sustainable

A daily dose of 3 grams of creatine monohydrate is widely supported in scientific literature. While some use "loading phases," long-term benefits are best achieved through consistent, daily use. Feyv is formulated for this exact type of sustainable, long-term support.

The Gold Standard: Why Monohydrate?

Despite the emergence of alternative forms, creatine monohydrate remains the gold standard. It is the most studied, most stable, and most trusted form used in the vast majority of peer-reviewed research. At Feyv, we believe in using what works, verified by science.

References

1. Persky AM, Brazeau GA. Clinical pharmacology of the dietary supplement creatine monohydrate. Pharmacological Reviews. 2001;53(2):161-76. 2. Kreider RB et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18. 3. Branch JD. Effect of creatine supplementation on body composition and performance: a meta-analysis. Int J Sport Nutr Exerc Metab. 2003;13(2):198–226. 4. Candow DG et al. Efficacy of creatine supplementation: systematic review. J Strength Cond Res. 2021. 5. Rae C et al. Oral creatine monohydrate supplementation improves brain performance: a double–blind, placebo–controlled, cross–over trial. Proc R Soc Lond B Biol Sci. 2003;270(1529):2147–2150. 6. McMorris T et al. Creatine supplementation and cognitive performance in elderly and sleep-deprived individuals. Psychopharmacology. 2007;185(1):93–99. 7. Avgerinos KI et al. Effects of creatine supplementation on cognitive function of healthy individuals: A systematic review of randomized controlled trials. Exp Gerontol. 2018;108:166-173. 8. Chilibeck PD et al. The effect of creatine supplementation combined with resistance training on bone mineral density in older adults. J Nutr Health Aging. 2015;19(5):547–552. 9. Candow DG et al. Creatine supplementation in aging populations: effects on skeletal muscle, bone and brain. J Cachexia Sarcopenia Muscle. 2011;2(4):191–198. 10. Buford TW et al. International Society of Sports Nutrition position stand: creatine supplementation and exercise. J Int Soc Sports Nutr. 2007;4:6. 11. Kreider RB et al. Long-term creatine supplementation does not significantly affect clinical markers of health in athletes. Mol Cell Biochem. 2003;244(1-2):95–104. 12. Poortmans JR, Francaux M. Long-term oral creatine supplementation does not impair renal function in healthy athletes. Med Sci Sports Exerc. 2000;32(5):1108–1110. 13. van der Merwe J et al. Three weeks of creatine monohydrate supplementation affects dihydrotestosterone to testosterone ratio in college-aged rugby players. Clin J Sport Med. 2009;19(5):399–404. 14. Jäger R et al. Analysis of the efficacy, safety, and regulatory status of novel forms of creatine. J Dietary Suppl. 2011;8(4):298–318.