Consistently improves maximal strength
Across decades of trials, adding creatine to resistance training reliably increases strength and power output beyond training alone — the effect the research is most confident about.
Research
The evidence, and
the proof.
Two questions decide whether a creatine is worth taking: does the molecule work, and is the powder in the tub actually what it claims? The first is answered by four decades of published science. The second is answered by the Crealean® certificate.
The molecule
Backed by the literature.
Creatine monohydrate is the most-researched supplement in sports science — the rare case where the evidence arrived before the hype.
#1most-researched sports supplement in the world
1,000+peer-reviewed studies published
40+ yrsof documented research and use
1ingredient — nothing to look up but purity
What the science says
Six areas, plainly summarized.
A tour of where the research on creatine is strongest — and where it’s still being written.
Supports gains in muscle size
By enabling more quality training volume and improving cell hydration, creatine is associated with greater increases in lean body mass over a training block.
Boosts repeated-sprint performance
Studies of short, maximal, repeated efforts show less drop-off between bouts — directly relevant to team and field sports.
May aid recovery between sessions
Evidence points to reduced markers of muscle damage and faster restoration of energy stores when creatine is taken consistently.
A growing area of study
Because the brain runs on the same ATP system, researchers are actively studying creatine for cognition under fatigue, sleep deprivation, and healthy aging.
A strong long-term safety record
Creatine monohydrate is among the most-studied supplements in existence, with a large body of evidence supporting daily use in healthy adults.
These are plain-language summaries of the published literature on creatine monohydrate, provided for education. They are not medical advice — if you have a health condition or take medication, talk to your doctor before supplementing.
Effect ranges quoted across this site summarise the published literature on creatine monohydrate — principally the International Society of Sports Nutrition position stand on creatine supplementation (Kreider et al., Journal of the International Society of Sports Nutrition, 2017) and the trials and systematic reviews it reviews. Figures are typical reported ranges across study populations, not a promise of individual results.
The research behind the mark
How Crealean is verified.
Great research on creatine is worthless if the powder in the tub isn’t the real thing. Here’s the testing that stands behind the trademark.
/ 01Assay
Creatine content by HPLC
Each batch is assayed by high-performance liquid chromatography to confirm it meets the 99.99% purity the label claims.
/ 02Screen
Contaminant screening
We screen for the by-products that separate premium creatine from commodity powder — dicyandiamide, dihydrotriazine — plus heavy metals.
/ 03Size
Particle-size verification
Micronization is checked against a 200-mesh standard so every tub disperses clean rather than settling into grit.
/ 04Trace
Certificate for every batch
Results are recorded against a batch code printed on the tub — the certificate of analysis is the mark's proof, not a marketing line.
Sample batch reference: CRL-2408-99A · assayed at 99.99%.
Proof, not promises
Read the mark, not the marketing.
See what Crealean® stands for and how to put it to work.