5 Hair Growth Myths Debunked: Science-Backed Tips For Faster, Thicker Hair

Dermatoilogist debunks 5 hair growth myths
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. Clin. J. Sport Med. 2009;19:399–404. doi: 10.1097/JSM.0b013e3181b8b52f
Antonio J, Candow DG, Forbes SC, Gualano B, Jagim AR, Kreider RB, Rawson ES, Smith-Ryan AE, VanDusseldorp TA, Willoughby DS, Ziegenfuss TN. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? J Int Soc Sports Nutr. 2021 Feb 8;18(1):13. doi: 10.1186/s12970-021-00412-w. PMID: 33557850; PMCID: PMC7871530.
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. J Int Soc Sports Nutr. 2025 Sep;22(sup1):2495229. doi: 10.1080/15502783.2025.2495229. Epub 2025 Apr 23. PMID: 40265319; PMCID: PMC12020143.
Bazzano GS, Terezakis N, Galen W. Topical tretinoin for hair growth promotion. J Am Acad Dermatol. 1986 Oct;15(4 Pt 2):880-3, 890-3. doi: 10.1016/s0190-9622(86)80024-x. PMID: 3771854.
Sharma A, Goren A, Dhurat R, Agrawal S, Sinclair R, Trüeb RM, Vañó-Galván S, Chen G, Tan Y, Kovacevic M, Situm M, McCoy J. Tretinoin enhances minoxidil response in androgenetic alopecia patients by upregulating follicular sulfotransferase enzymes. Dermatol Ther. 2019 May;32(3):e12915. doi: 10.1111/dth.12915. Epub 2019 Apr 23. PMID: 30974011.
Cai F, Young BK, Mccoy JA. Commercially Available Prenatal Vitamins Do Not Meet American College of Obstetricians and Gynecologists Nutritional Guidelines. Am J Perinatol. 2024 May;41(S 01):e2547-e2554. doi: 10.1055/a-2125-1148. Epub 2023 Jul 7. PMID: 37419140; PMCID: PMC11100770.

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32 Comments

  1. Monk the obsessive compulsive detective always said blessing and a curse! 👍🏻☕️😂

    1. You forgot to charge one of your ears. 😅. Jk. I don’t notice it,but I’m watching on iPad.

    2. I have the same issue. It must have something to do with some complicated audio setting like mono/stereo when either recording or editing.

    3. It happens to me if I bump a setting by accident on my DJI mic (which is the one it looks like Andrea is using)

  2. You are the voice of reason, knowledge, and intelligence. I wouldn’t listen to anyone else on the Internet.

  3. I use Creatine and sometimes get a tingling scalp sensation. I wonder if maybe other people do too and it makes them think it’s affecting their hair?
    I did more research and found that it’s similar to how a pre-workout supplement can make you feel itchy or tingly

    1. Wow, I forgot about those tingling pre workout products. They were fun. I need to find those again!!!

  4. Dr. Dray, your lashes are longer than ever, so pretty! Is that a new mascara? I have so much trouble getting sunscreen on my face and not getting my mascara to run.

  5. Dr Dray, really appreciate how you mix science with care advice! I recently made a short science-based episode on what your hair goes through under the microscope. It’s kind of dramatic.

  6. Okay good, now I won’t try a retinol on my scalp. Only heard of this recently and sounds like there’s not enough research behind it yet. Hope you are having a great day!

  7. My dermatologist prescribed a Minoxinol and tretinoin compound for me for hair loss/thinning in the temple area. I experienced a lot of skin peeling in the area and I stopped after 6 months. The new compound is minoxinol with argan oil cream as the vehicle to cut down on the dryness the minoxinol causes. Still early days so TBD.

  8. For forever, i thought i had fine hair and avoided conditioning my roots. On wash day, my hair was tangly and unmanageable, and i didn’t understand why… until i started conditioning my roots again. Just a tiny amount goes a LONG way on double shampood hair. I have long, rib cage length hair, and it is healthy and silky smooth again to its full potential. Joke is on me for blindly following hair “rules.”

    Also, thank you for helping to combat the many myths of creatine!! Creatine is an amazing supplement, and it’s too bad many people are afraid of it.

  9. I love your headboard. Do you know where you bought it? And I also love your paint color.. do you actually remember the color name? Yes, I need to redo my bedroom.!

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