Does Creatine Cause Hair Loss? What the Research Actually Says
Does Creatine Cause Hair Loss? What the Research Actually Says
"Can creatine make you lose your hair?" It's one of the most persistent questions in fitness and supplement circles, and it's a fair one to ask before starting a new supplement. The honest, short answer to does creatine cause hair loss is: the evidence we currently have does not support that claim, though the question has a more nuanced backstory worth understanding — including exactly where the concern came from and what more recent, direct research has actually found.
This article walks through the science carefully: what creatine is, why the hair loss concern exists in the first place, what the actual clinical studies show (not just what gets repeated online), and what someone concerned about hair thinning should realistically know. We'll clearly separate established evidence from hypotheses, association from causation, and credible research from internet speculation.
Table of Contents
Quick Answer
Based on the currently available clinical research, there is no strong scientific evidence that creatine supplementation causes hair loss. The concern originated from a single 2009 study that found an increase in DHT (dihydrotestosterone) after short-term creatine loading in a small group of rugby players — but that study did not measure hair outcomes at all. A 2025 randomized controlled trial specifically designed to test this question directly measured hair follicle health after 12 weeks of creatine supplementation and found no significant differences in DHT levels, DHT-to-testosterone ratio, or any hair growth parameter between the creatine and placebo groups (Lak et al., 2025). It's important to be precise here: this doesn't prove with absolute certainty that creatine could never affect hair in any individual under any circumstance, but the current body of evidence — including the only study to date that has directly measured hair follicles — does not support the claim that creatine causes hair loss.
What Is Creatine?
Creatine and Creatine Monohydrate
Creatine is a naturally occurring compound found in small amounts in foods like red meat and fish, and it's also produced by the body itself, primarily in the liver, kidneys, and pancreas. Creatine monohydrate is the most extensively studied and widely used supplemental form.
ATP and Muscle Energy
Creatine plays a central role in the body's rapid energy system by helping regenerate ATP (adenosine triphosphate), the primary energy currency used during short, high-intensity muscular effort. Supplementing with creatine increases stored phosphocreatine in muscle tissue, supporting faster ATP regeneration during intense exercise.
Why Athletes Use It
Creatine is one of the most extensively researched ergogenic aids available, with a substantial body of evidence supporting its role in improving strength, power output, and lean muscle mass when combined with resistance training. It's used by athletes across a wide range of sports, from strength training to team sports requiring repeated bursts of high-intensity effort.
Why Is Creatine Linked to Hair Loss?
Where the Theory Originated
The connection between creatine and hair loss traces back to a single, frequently cited study published in 2009 in the Clinical Journal of Sport Medicine. Researchers investigated whether creatine supplementation would affect androgen hormone levels in 20 college-aged rugby players, using a double-blind, placebo-controlled crossover design (van der Merwe et al., 2009).
DHT, Testosterone, and 5-Alpha Reductase
The study found that after seven days of creatine loading (25 g/day), DHT levels increased by 56% compared to baseline, and remained about 40% above baseline after a further 14 days of maintenance dosing (5 g/day). The DHT-to-testosterone ratio also increased by 36% after loading and remained elevated by 22% during maintenance (van der Merwe et al., 2009). Total testosterone levels themselves did not change.
DHT is produced when the enzyme 5-alpha reductase converts testosterone into DHT, a more potent androgen. Because DHT is well established as a key factor in androgenetic alopecia (genetic pattern hair loss), a study showing increased DHT understandably raised concern that creatine could, by extension, contribute to hair thinning.
Follicle Sensitivity and Androgenetic Alopecia
It's worth being precise about the underlying biology here: DHT itself doesn't directly cause hair loss in everyone who has it. Androgenetic alopecia depends on genetically inherited sensitivity of specific hair follicles to DHT, not simply on how much DHT is circulating in the body. This distinction — between hormone levels and follicle-level sensitivity — is central to understanding why an increase in a hormone doesn't automatically translate into hair loss. For a full explanation of this mechanism, see our guide on DHT and hair loss.
What Does the Research Actually Say?
This is the most important part of the conversation, since a lot of online discussion repeats the 2009 finding without examining it critically or looking at what has been studied since.
The 2009 van der Merwe Study
Study design: Double-blind, placebo-controlled crossover trial. Participants: 20 college-aged male rugby players (16 completed the full protocol). What was measured: Serum testosterone and DHT, measured at baseline, after 7 days of creatine loading, and after 14 additional days of maintenance dosing. What researchers found: DHT increased significantly during both loading and maintenance phases, along with the DHT-to-testosterone ratio, while total testosterone remained unchanged (van der Merwe et al., 2009).
Limitations: This study did not measure any hair-related outcome at all — no hair density, shedding, follicle count, or scalp assessment was included. It also had a small sample size, and subsequent research has not been able to replicate the DHT findings in later studies. The study demonstrates a potential hormonal association, but it does not, and was never designed to, establish anything about actual hair loss.
What this study does NOT prove: It does not show that creatine causes hair loss. It shows a hormonal shift in a small group of athletes under a specific short-term loading protocol — nothing more.
The 2025 Randomized Controlled Trial
Sixteen years after the original study sparked the concern, a dedicated trial was finally designed to answer the actual question directly.
Study design: Randomized, controlled trial. Participants: 45 resistance-trained males aged 18–40, with 38 completing the full 12-week protocol, divided into a creatine monohydrate (5 g/day) group and a placebo (maltodextrin, 5 g/day) group (Lak et al., 2025). What was measured: Total testosterone, free testosterone, and DHT via blood samples at baseline and after 12 weeks. Hair follicle health was assessed using the Trichogram test and the FotoFinder imaging system, measuring hair density, follicular unit count, growth-phase ratios, and cumulative hair thickness (Lak et al., 2025). What researchers found: There were no significant group-by-time interactions for any hormone or hair-related outcome. While total testosterone increased and free testosterone decreased slightly over the 12 weeks, these changes occurred similarly in both the creatine and placebo groups, meaning they were not attributable to creatine supplementation itself. Critically, there were no significant differences between groups in DHT levels, the DHT-to-testosterone ratio, or any hair growth parameter measured (Lak et al., 2025).
Limitations: The study followed healthy, resistance-trained young men over 12 weeks; it doesn't necessarily capture effects over multiple years, nor does it include women, older adults, or individuals with pre-existing, active androgenetic alopecia. As with any single trial, ongoing research helps confirm and extend these findings over time.
What this study demonstrates: This was the first study to directly and objectively measure hair follicle health alongside hormone levels during creatine supplementation, and the researchers concluded it "provides strong evidence against the claim that creatine contributes to hair loss" (Lak et al., 2025).
Position Statements From Sports Nutrition Organizations
Beyond individual studies, the International Society of Sports Nutrition (ISSN) has published position stands and evidence reviews addressing common creatine questions and misconceptions, including the hair loss claim specifically. Their most recent review states plainly that there is currently no direct evidence that creatine supplementation promotes hair loss (Antonio et al., 2025). The ISSN's broader position stand on creatine safety and efficacy, based on an extensive body of research, does not list hair loss as an established side effect of creatine supplementation (Kreider et al., 2017).
Creatine and DHT
It's worth slowing down on this specific point, since it's the crux of the entire debate.
Hormone Changes Are Not the Same as Clinical Hair Loss
Even in the original 2009 study that found a DHT increase, no hair outcome was measured — so it's inaccurate to describe that study as evidence of creatine-related hair loss. A hormonal shift, even a statistically significant one, does not automatically translate into a clinically meaningful outcome like reduced hair density or increased shedding.
Follicle Sensitivity Matters More Than DHT Levels Alone
As covered earlier, androgenetic alopecia depends heavily on genetically inherited follicle sensitivity to DHT. Two people with identical DHT levels can have completely different hair outcomes based on this inherited sensitivity. This means that even if creatine did modestly influence DHT in some individuals (a finding that has not been consistently replicated), this would not automatically or predictably translate into hair loss for everyone, or even most people.
The Most Direct Evidence Available Shows No Effect
The 2025 trial is particularly important here because it's the only study to date that has directly measured both DHT and actual hair follicle parameters in the same group of people over an extended period, and it found no meaningful difference between creatine and placebo groups on either front (Lak et al., 2025).
Does Creatine Actually Cause Hair Loss?
Based on the totality of currently available evidence, the honest, balanced conclusion is: no compelling scientific evidence supports the claim that creatine causes hair loss. The concern originated from a single small study that measured hormones but not hair, and the one study designed to test the actual question directly found no effect on either hormones or hair follicle health.
This doesn't mean the book is permanently closed — science continues to evolve, and larger, longer-term, and more diverse studies (including women and older populations) would further strengthen confidence in this conclusion. But based on what we know today, the evidence does not support avoiding creatine specifically due to hair loss concerns.
Creatine vs. Hair Loss: What We Know vs. What We Don't Know
Who May Be More Concerned About Hair Loss?
Some people reasonably feel more cautious about anything DHT-related, including:
- Those with a family history of androgenetic alopecia
- People already experiencing hair thinning or a receding hairline
- Individuals who know or suspect they have heightened DHT sensitivity
It's important to be clear: current research does not suggest that creatine will necessarily worsen hair thinning in these individuals. The available evidence, including the most direct study to date, did not find a meaningful hormonal or hair-follicle effect from creatine supplementation. That said, individuals who are already managing active hair thinning and want additional peace of mind may reasonably choose to discuss their specific supplement regimen with a dermatologist, particularly if they're also using other medications or treatments.
Other Common Causes of Hair Loss
Since creatine is unlikely to be a meaningful contributor based on current evidence, it's worth understanding the causes that are well established:
- Genetics: The most common cause of progressive pattern hair thinning, involving inherited follicle sensitivity to DHT.
- DHT: Plays a central role in androgenetic alopecia specifically in genetically predisposed individuals.
- Stress: Can trigger a temporary condition called telogen effluvium, causing increased diffuse shedding.
- Telogen Effluvium: The clinical term for stress- or trigger-related hair shedding, typically appearing a few months after the triggering event.
- Nutrition: Deficiencies in iron, protein, vitamin D, or zinc are associated with increased shedding.
- Hormonal Changes: Conditions like PCOS, thyroid disorders, pregnancy, and postpartum recovery can all affect the hair growth cycle.
- Scalp Conditions: Inflammation, dandruff, and product buildup can interfere with a healthy follicle environment.
- Illness: Significant illness or infection can act as a physical stress trigger for temporary shedding.
- Medications: Certain medications list hair shedding as a known side effect, unrelated to creatine.
For a complete breakdown of these causes, see our guide on why hair thins.
Should You Stop Taking Creatine If You're Losing Hair?
This is a personal decision, and it's one best made with accurate information rather than fear. Based on current evidence, creatine is unlikely to be a meaningful driver of hair loss for most people. If you're experiencing noticeable hair thinning while taking creatine, it's more likely — statistically and biologically — that another factor (genetics, stress, nutrition, or a hormonal or medical condition) is the actual cause, especially since creatine use so often coincides with periods of intense training, altered eating patterns, and other life changes that can independently affect hair.
If you're experiencing significant, persistent, or rapidly progressing hair loss, the most appropriate step is to speak with a dermatologist or another qualified healthcare professional, who can evaluate your specific situation, run relevant bloodwork, and help identify the actual underlying cause — rather than assuming creatine is responsible based on internet claims alone. This article is not intended to diagnose your specific situation or to advise for or against continuing any supplement; that decision should be made in consultation with a healthcare provider familiar with your health history.
How to Support Healthy Hair While Training
Whether or not you use creatine, several factors matter for supporting healthy hair alongside an active training routine:
Protein
Since hair is built almost entirely from a protein called keratin, adequate protein intake — often already a priority for those training seriously — supports the structural building blocks hair needs.
Balanced Nutrition
A well-rounded diet supports overall hair follicle function, independent of any specific supplement use.
Iron
Particularly relevant for female athletes or anyone with heavy training volume, since intense training combined with inadequate iron intake can contribute to deficiency-related shedding.
Vitamin D
Plays a role in the hair follicle cycling process; levels can be affected by indoor training schedules or limited sun exposure.
Sleep
Consistent, quality sleep supports the body's hormonal regulation and recovery processes, both relevant to hair health and training performance alike.
Stress Management
Since significant physical or emotional stress can independently trigger temporary hair shedding, managing training-related and life stress supports overall hair health, separate from any supplement considerations.
Scalp Care
A clean, well-cared-for scalp supports the healthiest possible environment for hair follicles, regardless of your supplement regimen.
Gentle Hair Care
Frequent showering after workouts, combined with sweat and friction from headwear, can be tough on hair — gentle handling and appropriate cleansing help minimize unnecessary breakage.
Hair Growth Routine for Active People
Morning
- Prioritize a protein-rich breakfast to support both training goals and hair structure
- Gently detangle hair before any pre-workout preparation
Post-Workout
- Rinse sweat and product buildup from the scalp relatively promptly after intense training sessions
- Avoid leaving hair in tight, sweat-soaked styles (like a tight bun under a cap) for extended periods
Evening
- Cleanse gently with a scalp-focused shampoo on wash days
- Apply a scalp-focused serum to a clean scalp
- Spend a few minutes on gentle scalp massage to unwind after a demanding training day
Weekly
- Track any changes in shedding or scalp condition over time
- Reassess whether sweat, headwear, or styling habits during training might be contributing to any additional hair stress
- Use a clarifying wash occasionally if you use styling or performance-related hair products regularly
For a more complete daily and weekly framework, see our full hair growth routine guide.
Scalp Health and Hair Thinning
Regardless of whether someone uses creatine or any other supplement, scalp health remains a foundational factor in hair growth. A clean, balanced, well-circulated scalp supports the healthiest possible environment for hair follicles to function — which matters just as much for an athlete taking creatine as it does for anyone else navigating hair thinning from an entirely different cause. Maintaining good scalp hygiene, avoiding unnecessary irritation, and supporting the scalp environment through proper nutrition are relevant considerations independent of any specific supplement decision.
Hair Care Ingredients
Since some readers concerned about hair loss may be looking for supportive options regardless of the creatine question, here's a brief, evidence-conscious look at commonly discussed ingredients:
- Saw Palmetto: Studied for its potential to mildly inhibit the 5-alpha reductase enzyme; evidence remains more limited than for prescription treatments.
- Caffeine: Some research suggests topical caffeine may support hair follicle activity, though most studies are small.
- Peptides: Certain peptides are studied for their potential to support scalp condition and hair strand structure, though evidence varies significantly by specific peptide.
- Biotin: Supports keratin production, most clearly beneficial for those with an actual biotin deficiency.
- Niacinamide: Supports scalp barrier function, helping maintain a more balanced scalp environment.
None of these ingredients have been studied specifically in the context of creatine use, and none should be understood as a way to counteract a creatine-related hair effect that current evidence doesn't support in the first place. For a full, evidence-graded breakdown, see the best ingredients for hair regrowth.
How Scalvea Fits Into a Healthy Hair Routine
If you're an active person focused on both training and hair health, a consistent, scalp-focused routine can be a reasonable part of your broader self-care — separate from any decisions about creatine or other supplements.
The Scalvea Hair Growth Shampoo is formulated to gently cleanse the scalp, supporting a healthy follicle environment as part of a regular training and recovery routine. The Scalvea Hair Growth Serum is designed to be applied to a clean scalp as a supportive step within a consistent routine.
To be clear: neither product is positioned as a way to prevent, counteract, or treat any creatine-related hair effect, since current evidence doesn't support the existence of such an effect in the first place. Neither product is intended to medically treat androgenetic alopecia or any other diagnosed hair loss condition. They're formulated to support general scalp health as part of a broader, realistic hair care routine, independent of your supplement choices.
Common Myths About Creatine and Hair Loss
Creatine and Hair Loss: Quick Summary
When to See a Dermatologist
Regardless of supplement use, certain signs of hair loss warrant a professional evaluation:
- Rapid or sudden hair loss over a short period
- Patchy hair loss, rather than diffuse, even thinning
- Sudden, significant shedding that seems disproportionate to your usual pattern
- Scalp inflammation, redness, or pain
- Persistent, unexplained shedding that continues without a clear cause or improvement over several months
A dermatologist can run appropriate bloodwork, examine your scalp, and help identify the actual underlying cause of any hair changes you're experiencing — rather than relying on assumptions about any single supplement.
Key Takeaways
- The claim that creatine causes hair loss originated from a single 2009 study that found increased DHT in a small group of rugby players, but that study did not measure any hair outcome.
- A 2025 randomized controlled trial specifically designed to test this question directly measured hair follicle health after 12 weeks of creatine supplementation and found no significant effect on DHT, DHT-to-testosterone ratio, or any hair growth parameter.
- Major sports nutrition position statements do not list hair loss as an established risk of creatine supplementation.
- Hair loss depends on genetically inherited follicle sensitivity to DHT, not simply on circulating hormone levels, which is why even a hormonal shift wouldn't automatically translate into hair loss for everyone.
- If you're experiencing hair thinning while using creatine, it's statistically more likely to stem from genetics, stress, nutrition, or another established cause, and is worth discussing with a dermatologist rather than assuming creatine is responsible.
- Supporting overall hair health — through nutrition, sleep, stress management, and scalp care — remains valuable for active individuals regardless of their supplement choices.
- Products like the Scalvea Hair Growth Shampoo and Scalvea Hair Growth Serum can support general scalp health as part of a training-friendly routine, though they are not positioned as a response to any creatine-specific effect.
Frequently Asked Questions
1. Does creatine cause hair loss? Current scientific evidence does not support this claim; the most direct study to date, which measured actual hair follicle health after 12 weeks of creatine supplementation, found no significant effect.
2. Does creatine increase DHT? A single 2009 study found an increase in DHT after short-term creatine loading, but this finding has not been consistently replicated in later, more direct research, including a 2025 randomized controlled trial.
3. Can creatine cause baldness? There's no compelling scientific evidence linking creatine to baldness; genetic follicle sensitivity to DHT, not creatine use, is the established driver of androgenetic alopecia.
4. Should I stop creatine if my hair is thinning? If you're experiencing significant or persistent hair thinning, it's best to consult a dermatologist to identify the actual underlying cause, since current evidence doesn't support creatine as a likely driver.
5. Does creatine cause hair shedding? There's no strong evidence that creatine causes increased hair shedding; the 2025 trial that directly measured this found no significant difference between creatine and placebo groups.
6. Is creatine safe for hair? Based on current research, including the most direct study on this topic, creatine does not appear to negatively affect hair follicle health.
7. Can creatine worsen male pattern baldness? Current evidence doesn't support the idea that creatine worsens androgenetic alopecia; the condition is primarily driven by genetic DHT sensitivity, independent of creatine use.
8. What was the original study that linked creatine to hair loss? A 2009 study published in the Clinical Journal of Sport Medicine found increased DHT levels in rugby players after creatine loading, though it did not measure any hair-related outcome.
9. Has the 2009 creatine and DHT study been replicated? No, subsequent research, including a more comprehensive 2025 trial, has not consistently replicated the DHT increase found in the original 2009 study.
10. What did the 2025 creatine and hair loss study find? The 2025 randomized controlled trial found no significant differences in DHT levels, DHT-to-testosterone ratio, or any hair growth parameter between creatine and placebo groups after 12 weeks.
11. Do sports nutrition organizations warn against creatine due to hair loss? No, position statements from organizations like the International Society of Sports Nutrition do not list hair loss as an established risk of creatine supplementation.
12. Is DHT always bad for hair? No, DHT plays legitimate roles in the body; it only contributes to hair loss in individuals whose specific hair follicles are genetically sensitive to it.
13. Can I take creatine if I have a family history of hair loss? Current evidence doesn't suggest creatine will meaningfully worsen hair thinning even in those with a genetic predisposition, though individuals with specific concerns may wish to discuss this with a dermatologist.
14. Does creatine interact with hair loss medications like finasteride or minoxidil? There's no established evidence of a negative interaction, though it's reasonable to mention your full supplement regimen to your prescribing doctor.
15. Why do so many people believe creatine causes hair loss? The belief largely stems from a single, frequently cited 2009 study on DHT that never actually measured hair, combined with the fact that creatine use often coincides with periods of intense training that can independently affect hair through stress or dietary changes.
16. Does creatine affect testosterone levels? Most research, including recent trials, has not found that creatine meaningfully increases testosterone levels beyond changes also seen in placebo groups.
17. Is creatine monohydrate different from other forms in terms of hair loss risk? Creatine monohydrate is the most extensively studied form, and there isn't strong evidence that alternative forms behave differently regarding DHT or hair outcomes.
18. What other factors could explain hair loss in someone taking creatine? Genetics, stress, nutritional deficiencies, hormonal changes, scalp conditions, and other medications are all more established causes of hair loss than creatine.
19. Should women be concerned about creatine and hair loss? Existing hair-focused creatine research has primarily studied men; while there's no specific evidence suggesting increased risk for women, this population hasn't been specifically studied for this particular question.
20. Is more research needed on creatine and hair loss? Yes, larger, longer-term, and more demographically diverse studies would help further confirm and extend the findings of the current research base.
This article is for informational purposes and is not a substitute for professional medical advice. It does not diagnose any individual's hair loss or recommend for or against any supplement or medication. If you have concerns about hair loss or your supplement regimen, consult a dermatologist or qualified healthcare provider.
References
-
van der Merwe J, Brooks NE, Myburgh KH. Three weeks of creatine monohydrate supplementation affects dihydrotestosterone to testosterone ratio in college-aged rugby players. Clinical Journal of Sport Medicine. 2009;19(5):399-404. doi:10.1097/JSM.0b013e3181b8b52f
-
Lak M, Forbes SC, Ashtary-Larky D, Dadkhahfar S, Robati RM, Nezakati F, Khajevandi M, Naseri S, Gerafiani A, Haghighat N, Antonio J, Tinsley GM. Does creatine cause hair loss? A 12-week randomized controlled trial. Journal of the International Society of Sports Nutrition. 2025;22(sup1):2495229. doi:10.1080/15502783.2025.2495229
-
Kreider RB, Kalman DS, Antonio J, Ziegenfuss TN, Wildman R, Collins R, Candow DG, Kleiner SM, Almada AL, Lopez HL. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition. 2017;14(1):18. doi:10.1186/s12970-017-0173-z
-
Antonio J, Candow DG, Forbes SC, et al. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? Journal of the International Society of Sports Nutrition. 2021;18(1):13. doi:10.1186/s12970-021-00412-w
-
Antonio J, Brown AF, Candow DG, et al. Part II. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? Journal of the International Society of Sports Nutrition. 2025;22(1):2441760. doi:10.1080/15502783.2024.2441760