Creatine Supplement Ingredient

Impact

Highest effect

Typical dose:3000–5000 mg

Creatine increases phosphocreatine stores in muscles, which aids in the rapid regeneration of ATP, the primary energy currency of the cell. This leads to tangible improvements in strength, power output, and the ability to perform more repetitions during resistance training.

Study evidence

143 studies

Creatine can improve strength, power, and gains in lean mass, particularly alongside resistance training or repeated high-intensity exercise. Benefits vary by activity and population, and it does not reliably improve aerobic endurance; increases in body mass may also matter in weight-sensitive sports.

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Muscle Gain

Impact

Highest effect

Typical dose:3–5 g

By saturating muscle phosphocreatine stores, it allows for more repetitions and heavier loads during resistance training. This enhanced workload is a powerful stimulus for muscle hypertrophy over time.

Study evidence

136 studies

Creatine can add to gains in lean mass and strength from resistance training, although the extra muscle-growth benefit is generally modest and varies between people. Early increases in measured lean mass can reflect water, and supplementation alone has not consistently increased muscle mass.

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Productivity Boost

Impact

Highest effect

Typical dose:3000–5000 mg

Creatine plays a crucial role in recycling ATP, the primary energy currency of the cell. The brain is highly energy-demanding, and supplementing with creatine increases phosphocreatine stores, enhancing cognitive processing, memory, and resistance to mental fatigue.

Study evidence

16 studies

Creatine may modestly improve memory and some aspects of mental performance, especially under demanding conditions, but results in healthy adults are inconsistent. The available research does not establish that these effects translate into greater everyday productivity or better overall thinking ability.

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Weight Gain

Impact

Highest effect

Typical dose:3–10 g

Creatine increases phosphocreatine stores in muscles, which allows for rapid energy regeneration during short, explosive efforts like weightlifting. This enables you to perform more reps and sets with heavier weight, leading to a greater stimulus for muscle growth. It also draws water into muscle cells, contributing to cell volumization and an improved anabolic environment.

Study evidence

87 studies

Creatine can increase body weight and help build lean mass when combined with resistance training. Early weight changes may partly reflect added body water, and extra muscle gain is not consistent in every population or when creatine is taken without strength training.

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Anti-Aging

Impact

High effect

Typical dose:3000–5000 mg

Beyond athletic performance, creatine monohydrate is a powerful longevity supplement. It helps counteract age-related muscle loss (sarcopenia) and provides a readily available energy source for neurons, which may improve memory and reduce mental fatigue.

Study evidence

31 studies

Creatine supports aspects of healthy aging by improving muscle mass and strength, particularly alongside resistance training in older adults. It has not been shown here to slow aging itself or extend life, and evidence for bone and cognitive benefits is less consistent.

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Brain Health

Impact

High effect

Typical dose:3000–5000 mg

Beyond muscle, the brain is a high energy-consuming organ that uses creatine as a rapid-access energy source. Supplementation increases brain phosphocreatine levels, improving performance on mentally demanding tasks, especially under conditions of sleep deprivation or stress.

Study evidence

35 studies

Creatine may modestly improve memory and help preserve mental performance during sleep deprivation, but cognitive benefits are inconsistent. The available research does not establish broad improvements in brain health or show that supplementation prevents dementia or other neurodegenerative diseases.

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