Will 5g of creatine cause hair loss?

By Scott Blaine Hoffman · Updated November 10, 2026

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Answer: the evidence says no. 5 g a day is precisely the dose the 2025 randomized trial tested for 12 weeks, and it found no difference from placebo in DHT, hair density, follicle counts or hair thickness.

Why 5 grams is the dose that matters

Five grams is the standard maintenance dose printed on most creatine tubs. The scary 2009 study used 25 g a day during loading before dropping to 5 g, and it measured hormones, not hair. The 2025 trial went straight to the real-world question: what does a normal daily scoop do to your hair over three months? Nothing measurable. Compare the studies.

What about longer than 12 weeks?

That's the honest gap. No trial has tracked hair over years of creatine use. But nothing in the research points to a problem, and large safety reviews spanning decades haven't flagged hair loss.

What to do if you're still nervous

Stick to 3 to 5 g and skip loading.
Take monthly hairline photos.
If you're genetically prone, start a protective routine. The plan.

Frequently asked questions

Is 5g of creatine safe for hair?

Yes, according to the 2025 trial, which found no effect on hair at 5 g a day over 12 weeks.

Is 3g of creatine better than 5g for hair?

There's no evidence either dose affects hair. 3 g is plenty for many smaller adults.

Scott Blaine Hoffman

Scott has worked in the hair-loss field for more than 30 years. He founded Regrowth.com, the first hair-loss network on the web, whose community grew to more than 50,000 members including physicians, dermatologists and trichologists, and later formulated the Regenepure line. He is not a physician; every article is written against the published research cited on the page. Full bio

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