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Biotin

Ingredient · In our Hair Regrowth Capsule

Biotin (vitamin B7)

Biotin is a B vitamin your body uses to turn food into energy. Losing hair is one sign of being truly low in it, which is why it shows up in so many hair supplements.1

Abstract golden filaments, illustrative ingredient artwork
Biotin

Photo is an illustration, not the supplement.

Helps mainly if you're low

Biotin is a vitamin, not a hair drug. If you're actually deficient, getting enough can help hair and nails recover. For people with normal levels, the hair claims rest on a few case reports and small studies.1,2 It's in our capsule as a low-risk supporting ingredient, alongside finasteride and minoxidil. Our capsule is compounded by a licensed pharmacy, and compounded versions are not FDA-approved.4

FDA-approved for this useWell studied, used off-labelEarly evidenceLittle or no human data

The studies below used FDA-approved products or other forms. Our compounded version hasn't been studied in trials, and results may differ.

What it is

Biotin helps enzymes break down fats, carbs and protein. Eggs, fish, seeds, nuts and some vegetables like sweet potatoes are good sources. Real deficiency is rare, and severe deficiency has never been reported in healthy people eating a normal mixed diet.1

Why it's in this product

Biotin isn't the main ingredient in this capsule. Finasteride and minoxidil are. Biotin is there as nutritional backup, which matters most if your levels happen to be low.

Hair Regrowth Capsule

What the studies in people show

  • ReviewIt helped people who had a reason to be lowA review found 18 reported cases where biotin improved hair or nails. Every one of those people had an underlying condition behind it, such as a deficiency. The authors found no good evidence that it helps healthy people.2
  • Expert summaryNIH: thin evidence for the hair claimsThe NIH Office of Dietary Supplements says claims for biotin and hair, skin and nails are supported, at best, by a few case reports and small studies.1

What we don't know yet

No good trials have tested biotin for midlife thinning in women with normal levels. If you're curious whether you're low, that's a fair question to bring to your clinician.

Safety, in plain English

Biotin is generally well tolerated, and no upper limit has been set because toxicity hasn't been seen in people.1 The bigger issue is lab tests. High-dose biotin can throw off some blood tests, including thyroid tests and troponin, a test used to check for heart attacks, and FDA has warned that the wrong results may go unnoticed.1,3 Tell your doctor and the lab you take biotin before any blood work.

A licensed clinician reviews your health history and decides whether this capsule is appropriate for you. Exploring it here never means you'll get a prescription.

Curious about the Hair Regrowth Capsule?

Start with a free assessment. A licensed clinician reviews your health history and decides whether treatment is appropriate. No pressure, and no prescription unless it makes sense for you.

See Hair Regrowth CapsuleHow care works

Sources

  1. National Institutes of Health, Office of Dietary Supplements. Biotin: Fact Sheet for Health Professionals (updated January 10, 2022). NIH ODS
  2. Patel DP, et al. A review of the use of biotin for hair loss. Skin Appendage Disord. 2017;3:166-169. PubMed 28879195
  3. U.S. Food and Drug Administration. Biotin interference with troponin lab tests: assays subject to biotin interference (content current as of June 21, 2022). FDA
  4. U.S. Food and Drug Administration. Compounding and the FDA: Questions and Answers. FDA

Sources checked November 8, 2026. This page is general education, not medical advice, and it doesn't mean any treatment is right for you. Photos: Unsplash (Brandon Hoult).