The short version is that there is no solid evidence creatine causes hair loss. The fear traces back to a single study from 2009 in college rugby players. After three weeks of creatine, the players had higher levels of DHT, a hormone that is linked to male-pattern hair loss in people who are genetically prone to it.
Here is the catch. That study measured hormones, not hair. No one in it lost hair, because hair was never assessed. It was a small, short study, and since then other research has not reproduced the same DHT rise, and no study has reported balding from creatine.
So the honest position is that a hormonal link is possible in theory but unproven, and the real-world evidence for hair loss simply is not there. If you are genetically prone to male-pattern hair loss, you may prefer to be cautious, and that is a reasonable personal choice. For most people, the strength and muscle benefits of creatine come without a credible hair-loss risk. If you do notice thinning, a dermatologist can look at the actual causes, which are usually genetic.
Sources
- Common questions and misconceptions about creatine supplementation, Journal of the International Society of Sports Nutrition, PMC
- Three weeks of creatine monohydrate supplementation affects DHT to testosterone ratio in rugby players, PubMed
- Creatine, Mayo Clinic
This page is general information, not medical advice. Creatine is a dietary supplement, not a medicine. It is well studied and considered safe for most healthy adults, but talk to a doctor before starting if you have a health condition such as kidney disease, are pregnant or breastfeeding, or take prescription medication.