Hair, skin, nails & energy support
Biotin (Vitamin B7) is a water-soluble B vitamin that plays a critical role in energy metabolism, fatty acid synthesis, and the production of keratin — the protein that makes up hair, skin, and nails. It is often called the "beauty vitamin" because of its association with healthy hair, skin, and nails.
Biotin is naturally found in foods like eggs, nuts, seeds, and leafy greens. While true biotin deficiency is rare, many people take supplemental biotin to support hair and nail health. Research shows that biotin supplementation can be particularly beneficial for those with biotin deficiency or brittle nails.
Essential for keratin production. Supplementation may support hair thickness and reduce hair loss in those with biotin deficiency.
One of the most well-supported benefits. Multiple studies show biotin can improve nail thickness and reduce brittleness.
Supports healthy skin by aiding in fatty acid metabolism and keratin production. May help with certain skin conditions related to biotin deficiency.
Biotin is very safe with an excellent safety profile. Excess is excreted in urine. Some people may experience mild digestive upset at very high doses.
Biotin has been well-studied for its effects on nail health. A 2018 review found that biotin supplementation improved nail thickness and reduced brittleness in people with brittle nails. Evidence for hair benefits is stronger in those with biotin deficiency. It is considered safe and effective for these applications.
| Ingredient | Best For | Key Difference |
|---|---|---|
| Biotin | Hair, Nails, Skin, Energy | B vitamin; essential for keratin production |
| Collagen | Skin, Joints, Hair | Protein; provides building blocks for skin & joints |
| Zinc | Hair, Immune, Hormone | Essential mineral; supports 300+ reactions |
Biotin is often stacked with Collagen and Zinc for comprehensive hair, skin, and nail support.
Full stack recommendations coming soon in our Stacks section.
1. Lipner & Scher (2018). Biotin for the treatment of nail disease: what is the evidence? Journal of Dermatological Treatment, 29(4), 411–414.
2. Colombo et al. (1990). Treatment of brittle fingernails and onychoschizia with biotin. Journal of the American Academy of Dermatology, 23(6), 1127–1132.
3. Mock (2012). Biotin. In: Coates PM, Betz JM, Blackman MR, et al., eds. Encyclopedia of Dietary Supplements, 2nd ed. New York, NY: Informa Healthcare.
All references are peer-reviewed studies or position stands from reputable organizations.
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