Evidence-backed FAQ
Does creatine cause hair loss?
Direct answer
Current human evidence does not establish that creatine causes hair loss. One small trial reported a rise in DHT but did not measure hair, while a later randomized trial that measured hair outcomes found no significant effect.[1], [2]
What the evidence shows
The 2009 study measured hormones in 20 male rugby players. The 2025 study used 5 g/day for 12 weeks in healthy resistance-trained men and measured hair density and related outcomes.[1], [2]
Important limitations
The direct evidence consists of two small trials with different aims and does not resolve long-term effects or effects in other populations.[1], [2]
Related questions
- Did the original DHT study measure hair loss?
- What did the trial that measured hair find?
Read the full evidence summary
This FAQ is the concise answer. The linked research page provides the full study context, populations, doses, outcomes, and limitations.
References
- Three weeks of creatine monohydrate supplementation affects dihydrotestosterone to testosterone ratio in college-aged rugby players.. Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine. 2009. Randomized controlled trial View source →
- Does creatine cause hair loss? A 12-week randomized controlled trial.. Journal of the International Society of Sports Nutrition. 2025. Randomized controlled trial View source →