For healthy adults at label servings, the long-term human evidence — summarized in the ISSN position stand — has not shown harm. Anyone with kidney disease or on medication should ask their clinician first.

Do I need to load creatine?

Follow the label of the product you buy. Serving strategy is a label question, not something a reference page should improvise for you.

Will creatine work without training?

Not meaningfully. The evidence is about amplifying training, not replacing it. No training, no signal to amplify.

STAXMAXXX INDEX / PERFORM / Supplement

Creatine Monohydrate

The most-studied performance supplement in existence.

STAXXX evidence grade · Creatine Monohydrate

STRONG

Consistent human evidence at the highest tiers. This works, within its lane.

STRONG
MODERATE
EMERGING
INSUFFICIENT

Regulatory status: OTC dietary supplement
Sources on file: 3 total · 2 human · 1 pending
Rubric score: 7 weighted

Computed by the published STAXXX rubric · index-rubric.2026-08-15.1

WHAT IT IS

A compound your body already makes and stores in muscle, where it helps regenerate the energy currency used in short, hard efforts. As a supplement it is the single most researched ergogenic aid on the market, and one of the cheapest.

HOW IT WORKS

Muscles burn ATP for fuel and creatine phosphate is the fastest way to rebuild it. Raising muscle creatine stores gives you slightly more output on repeated high-intensity efforts — an extra rep, a slightly heavier set. Repeated over months of training, that small edge compounds into measurably more strength and lean mass than training alone.

WHERE THE EVIDENCE STANDS

Hundreds of human trials, meta-analyses, and a standing position paper from the sports-nutrition field's main scientific body. The effect is real, modest, and specific: repeated high-intensity work and resistance-training adaptation. It will not transform anyone by itself.

SOURCES

REFERENCEPosition stand
International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine
Journal of the International Society of Sports Nutrition · 2017 · doi:10.1186/s12970-017-0173-z
The field's standing consensus document on efficacy and safety.
REFERENCEMeta-analysisPending document
Creatine supplementation and lower limb strength performance: a systematic review and meta-analysis
Sports Medicine (Lanhers et al.) · 2015
REFERENCERegulatory fact sheet
Dietary Supplements for Exercise and Athletic Performance — Health Professional Fact Sheet
NIH Office of Dietary Supplements

1 of 3 documents are not confirmed yet. Pending means pending.

REGULATORY STATUS

OTC dietary supplementSold legally over the counter as a dietary supplement in the US. Dietary supplements are not reviewed by the FDA for efficacy before sale, which is exactly why third-party batch testing matters.

WHO THIS IS FOR

People doing resistance training who want the one supplement with real weight behind it
Athletes in sports built on repeated short efforts
Anyone tired of choosing between forty underdosed blends

WHAT PEOPLE GET WRONG

Creatine is a steroid, or something like one.: It is not hormonal and has nothing in common with anabolic steroids. It is a nitrogen-containing compound found in ordinary food and made by your own liver.
It destroys your kidneys.: Long-term studies in healthy adults have not shown kidney damage at label servings. People with kidney disease should talk to their clinician before taking anything — that is true of most supplements.
The fancy new forms are worth the markup.: Monohydrate is the form the evidence is built on. No alternative form has outperformed it in credible head-to-head research.

WHAT WE CLAIM

Supports strength and power output in repeated high-intensity training.
Clinical evidence
One of the simplest possible additions to an existing training routine.
Structure and use, not an effect claim

QUESTIONS

Is creatine safe?: For healthy adults at label servings, the long-term human evidence — summarized in the ISSN position stand — has not shown harm. Anyone with kidney disease or on medication should ask their clinician first.
Do I need to load creatine?: Follow the label of the product you buy. Serving strategy is a label question, not something a reference page should improvise for you.
Will creatine work without training?: Not meaningfully. The evidence is about amplifying training, not replacing it. No training, no signal to amplify.