Ingredient guide
What is creatine?
Learn what creatine is, where it comes from, common supplement forms, and how Creatine Science reviews published studies, their findings, and limitations.
Creatine is a nitrogen-containing organic compound that the human body produces naturally in the liver, kidneys, and pancreas, and that also occurs in foods such as meat and fish. In supplement form it is most often sold as creatine monohydrate. Creatine Science is an independent project that reads the published scientific literature on creatine and summarizes what individual studies report, with links to their primary sources. We do not sell products directly. The information here is educational and is not medical advice; consult a qualified healthcare professional before changing your diet or supplement routine.
Explore the creatine guide by question
The structured guide connects this foundational page to the product comparison and focused research summaries.
Open the full creatine guide →
Creatine Benefits
What creatine appears to help most: strength, power, lean mass, and high-intensity performance.
Open guide →Creatine Dosage
How to think about daily maintenance dosing, consistency, and when loading is or is not useful.
Open guide →Creatine Loading
When a loading phase makes sense, what it changes, and when skipping it is reasonable.
Open guide →Creatine Forms
Creatine monohydrate versus alternative forms, with emphasis on evidence rather than marketing claims.
Open guide →Creatine for Women
Female-specific creatine evidence, including muscle, performance, and lifespan context.
Open guide →Creatine for Older Adults
Research context for creatine with aging, resistance training, muscle, and function.
Open guide →Product comparison
An evidence-informed comparison of leading creatine supplements. Every retained product is a creatine monohydrate powder evaluated on labeled dose, transparency, and independent testing.