Fundamentals · 5 min read
What creatine actually does.
The most researched performance supplement in existence. Over 1,000 published studies. Thirty years of clinical evidence. Here's what consistently comes out.
How it works
It all comes down to ATP.
Your muscles don't run on creatine — they run on adenosine triphosphate (ATP), the body's primary energy currency. The problem is that ATP stores deplete in seconds during high-intensity effort. That's where creatine comes in.
Stored in muscle as phosphocreatine (PCr), creatine donates a phosphate group to re-synthesize ATP almost instantaneously — allowing you to sustain more power, for longer, before fatigue sets in. This is why the effect is most pronounced in explosive, repeated efforts: sprints, heavy sets, fast breaks.
Over time, consistently elevated muscle creatine stores translate into more training volume, faster recovery between sets, and — through that accumulated work — meaningful gains in strength and lean mass.
Creatine monohydrate is the most effective ergogenic nutritional supplement currently available to athletes in terms of increasing high-intensity exercise capacity and lean body mass.
International Society of Sports Nutrition, 2017
Clinical evidence
Six benefits with consistent research support.
These aren't fringe findings or single studies. Each benefit below has been replicated across dozens of independent trials.
Muscle strength & performance
Increases strength, power output, and exercise capacity by replenishing ATP during high-intensity effort. Consistent effects across trained and untrained individuals — one of the most replicated findings in sports science.
Cognitive function & focus
The brain runs on ATP too. Creatine supports brain energy metabolism, improving memory, working memory, and performance under cognitive stress — particularly in sleep-deprived states.
Recovery & lean mass
Accelerates recovery between sets and between training sessions, allowing more total volume over weeks and months. More volume, consistently applied, is how muscle is built.
Bone health & longevity
Emerging research links creatine to improved bone density, reduced sarcopenia risk, and better metabolic health outcomes — benefits that extend well beyond athletic performance.
Sustained energy, no stimulants
Cellular energy without loading your adrenal system. No adenosine receptor antagonism, no cortisol spike, no crash. The ATP benefit works whether you're training or at a desk.
Safe for long-term use
Decades of research confirm creatine monohydrate is safe with minimal side effects at 3–5g daily. Recognized by the ISSN as one of the most effective and safest supplements available.
The body of evidence
Thirty years of research. One consistent conclusion.
Creatine monohydrate has been studied across age groups, fitness levels, sexes, and health conditions. The consistent finding is that daily supplementation at 3–5 grams raises muscle creatine stores — and those elevated stores translate to real performance and health outcomes.
There are few areas of nutritional science with this volume of evidence pointing in the same direction.
- Published studies
- More than 1,000 peer-reviewed studies examine creatine — making it the most researched performance supplement in existence.
- Years of research
- Creatine supplementation has been studied continuously since the early 1990s. Thirty years of evidence with no serious safety signals.
- ISSN position statement
- The International Society of Sports Nutrition concludes creatine monohydrate is the most effective ergogenic supplement available. Safe and effective.
- EFSA health claim approved
- The European Food Safety Authority granted an authorized health claim: creatine increases physical performance in successive bursts of short-term, high-intensity exercise.
The Merivo standard
Third-party tested. Every batch.
01.
1,000+
Published studies
The most extensively researched performance supplement in existence.
02.
30+
Years of clinical evidence
Continuously studied since the early 1990s. No serious safety signals in three decades.
03.
NSF®
Certified for Sport®
Every Merivo product independently tested and certified. The highest standard in third-party testing.
04.
99.9%
Pharmaceutical-grade purity
Creavitalis® — ultra-micronized creatine monohydrate produced in Germany under pharmaceutical regulations.