Does Creatine Cause Hair Loss? What the Research Actually Shows (2026)
By Bulldog Nutrition Editorial Team | Updated: June 2026
Quick Answer
No — current evidence does not support creatine causing hair loss. The concern originates from a single 2009 study that found elevated DHT levels in rugby players during creatine loading — but that study never measured actual hair loss, and its findings have not been replicated. A 2024 randomized controlled trial found no significant difference in DHT levels or hair growth parameters between creatine and placebo groups. The International Society of Sports Nutrition does not list hair loss as a side effect of creatine.
Of all the questions surrounding creatine supplementation, the hair loss concern comes up most often — and it carries the most anxiety, particularly for men in their 20s and 30s already concerned about thinning. The fear is understandable. Creatine is one of the most popular supplements in Canada, and the idea that it could accelerate hair loss would be a significant trade-off for many users.
The good news: the evidence for a creatine-hair loss link is far weaker than the internet would have you believe. Here is what the science actually shows.
Where Did the Hair Loss Claim Come From?
Every creatine-hair loss discussion traces back to a single study: a 2009 trial conducted on South African rugby players by van der Merwe et al. The study found that creatine supplementation significantly increased levels of dihydrotestosterone (DHT) — a hormone derived from testosterone that is associated with male pattern baldness.
Specifically, the study found:
- DHT increased approximately 56% above baseline during a creatine loading phase (7 days at 25g/day)
- DHT remained approximately 40% above baseline during maintenance dosing (14 days at 5g/day)
This finding spread rapidly across fitness forums and media — and the creatine-hair loss myth was born.
What the 2009 Study Actually Found (and What It Didn't)
The 2009 study has two critical limitations that are almost never mentioned when the findings are cited:
1. It never measured hair loss.
The study measured DHT levels in blood — not hair follicle activity, not hair shedding, not any clinical measure of hair loss. The researchers observed a rise in a hormone associated with hair loss in people with a genetic predisposition. They did not observe, document, or measure actual hair loss in any participant.
2. The findings have not been replicated.
In the 15+ years since the 2009 study, no other research team has published results confirming the same DHT elevation from creatine supplementation. A finding that cannot be replicated is a weak signal, not an established fact.
3. The study used an unusually aggressive loading protocol.
25g/day in the loading phase is substantially above the standard 20g/day loading dose. Whether the DHT elevation observed reflects typical creatine use is questionable.
What Newer Research Shows
The most recent and rigorous evidence comes from a 2024 randomized controlled trial published in PMC (PubMed Central). This study was specifically designed to test the creatine-DHT-hair loss hypothesis with a proper controlled methodology.
Key findings:
- No significant difference in DHT levels between creatine and placebo groups
- No significant difference in DHT-to-testosterone ratio between groups
- No significant difference in hair growth parameters between groups
- The study ran for 12 weeks — long enough to observe any sustained hormonal or hair changes
Understanding DHT and Hair Loss
DHT (dihydrotestosterone) is converted from testosterone by the enzyme 5-alpha reductase. In individuals with genetic androgenetic alopecia (male pattern baldness), DHT binds to receptors in hair follicles and causes them to miniaturize over time.
The critical word is genetic. DHT only causes hair loss in people whose follicles carry the genetic sensitivity to it. Millions of people have high DHT and no hair loss. Without the genetic predisposition, elevated DHT does not cause male pattern baldness.
What Experts and Organizations Say
The International Society of Sports Nutrition (ISSN), which publishes the most comprehensive position stand on creatine supplementation, does not list hair loss as a side effect or risk of creatine use.
The Cleveland Clinic has stated directly that the evidence linking creatine to hair loss is insufficient to support the claim, noting that the concern comes from a single study with significant methodological limitations.
Should Anyone Be Cautious?
| User Profile | Recommendation |
|---|---|
| No family history of pattern baldness | No concern — use creatine normally |
| Mild family history, no current thinning | Very low risk based on current evidence — proceed normally |
| Active male pattern baldness or strong family history | Discuss with physician if concerned — evidence does not confirm risk but the question is not fully closed |
| Women | DHT-driven androgenetic alopecia affects women differently; creatine-hair loss concern is primarily a male-specific discussion |
FAQ
Does creatine cause hair loss?
Current evidence says no. The only study suggesting a link — a 2009 trial — found elevated DHT levels but never measured actual hair loss. A 2024 randomized controlled trial specifically designed to test this question found no significant difference in DHT levels or hair growth between creatine and placebo groups.
Does creatine raise DHT?
One 2009 study found elevated DHT during aggressive creatine loading in rugby players. No other study has replicated this finding, and a 2024 RCT found no significant DHT elevation. The current weight of evidence does not support creatine causing sustained DHT elevation.
Should I stop taking creatine if I'm worried about hair loss?
If you are experiencing significant hair loss, consult a dermatologist or physician regardless of creatine use — pattern baldness is primarily genetic and has well-established treatments. Stopping creatine based on hair concerns alone is not supported by current evidence.
Is creatine safe for men with a family history of baldness?
Based on available evidence, yes — but if you have significant concerns, discuss with your doctor. The 2024 RCT found no measurable effect on hair in participants over 12 weeks, regardless of genetic background.
What are the real side effects of creatine?
Creatine's documented side effects are mild and well-established: temporary water retention in muscle tissue during the loading phase, and occasional gastrointestinal discomfort when taken in large doses without enough water. Hair loss is not among the evidence-backed side effects.
Bottom Line
The creatine-hair loss claim is one of the most persistent myths in sports nutrition — and it is not well supported by evidence. It originated from a single, unreplicated study that measured a hormone, not hair. A decade and a half of subsequent research, including a purpose-built 2024 clinical trial, has not confirmed the link.
If creatine's proven benefits — strength, muscle mass, recovery, and cognitive function — are relevant to your goals, the current state of evidence gives you no scientific reason to avoid it based on hair concerns.
For the best creatine supplements available in Canada, see our Best Creatine Supplements in Canada 2026 guide, or browse the full creatine collection at Bulldog Nutrition — authorized Canadian and US retailer with nationwide shipping.