Creatine is the most researched performance supplement in existence, with over 500 published studies. It is also one of the most misunderstood. This guide covers what the science actually shows, which form to buy, and which brands pass independent testing.
What creatine does
Creatine is stored in muscle tissue as phosphocreatine and used to regenerate ATP — the primary energy currency your cells use for short, high-intensity efforts. More phosphocreatine means you can sustain maximum effort for slightly longer before fatiguing.
In practice this translates to more reps, more sprint capacity, and improved recovery between sets. Over weeks of training, that marginal increase in volume compounds into greater strength and muscle gains. The effect is well-documented, consistent across populations, and meaningful even in non-athletes. Emerging research also suggests cognitive benefits, particularly in sleep-deprived states and older adults.
Monohydrate is the only form worth buying
Dozens of creatine variants exist: ethyl ester, hydrochloride, buffered, nitrate, Kre-Alkalyn. None of them outperform creatine monohydrate in head-to-head research. Several underperform it. They are priced at a premium and marketed on the basis of claims that do not hold up to scrutiny.
Creatine monohydrate has 30 years of safety data, costs a fraction per gram, and produces the results documented across hundreds of trials. There is no credible reason to use anything else.
Loading is optional
The traditional loading protocol involves taking 20g daily for 5 days, then dropping to 3-5g maintenance. This saturates muscle creatine stores faster. Taking 3-5g daily without loading achieves the same saturation in 3-4 weeks. Unless you need rapid results for a specific competition, the loading phase is not necessary and may cause digestive discomfort in some people.
Our top picks
Best overall: Thorne Creatine
Single ingredient, NSF Certified for Sport, unflavored, mixes cleanly. Thorne sources Creapure — a German-manufactured creatine monohydrate that undergoes purity testing at the source. This is our first recommendation for anyone who wants certainty about what they are taking.
Best value: NOW Sports Creatine Monohydrate
NOW uses Creapure and prices their product significantly lower than premium brands. GMP certified, regularly tested. For most people this is indistinguishable from the more expensive options and represents excellent value.
Best for athletes: Transparent Labs Creatine HMB
Transparent Labs combines Creapure creatine monohydrate with HMB, a compound that may support muscle preservation during caloric deficit. Third-party tested, full label transparency, no proprietary blends. A reasonable choice if you are cutting while trying to preserve strength.
How to take it
3-5g daily, any time of day, mixed with water or any beverage. Consistency matters more than timing. Contrary to popular belief, cycling off creatine is not necessary — the evidence does not support this practice.
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Medical disclaimer: for informational purposes only. Consult a licensed healthcare provider before starting any supplement.