Vitamins
Biotin
Supports healthy hair, skin, and nails
Key Benefits
- Supports normal macronutrient metabolism
- Helps meet biotin needs when dietary intake is inadequate
- Supports normal hair, skin, and nail maintenance in the context of adequate nutrition
- Provides an essential water-soluble B vitamin
How It Works
Ingredient Details
INCI Name: Biotin
Ingredient Type: Vitamin
Best For
People with a clinician-identified biotin deficiency · Individuals whose diet or medical circumstances may limit biotin status · People seeking basic B-vitamin nutritional support · Those using biotin under healthcare guidance
What It Is
What It Does
Biotin FAQs
Common questions about this ingredient in skincare.
What is biotin?
Biotin is vitamin B7, a water-soluble vitamin needed by enzymes that help metabolize fats, carbohydrates, and amino acids.
Does biotin make hair grow?
Biotin can correct hair changes caused by deficiency, but deficiency is uncommon and evidence for improving hair growth in people with adequate biotin status is limited.
Does biotin strengthen nails?
Small uncontrolled studies suggest possible benefit for some brittle nails, but strong clinical evidence is limited. Nail problems can have many causes and may warrant professional evaluation.
Can I get enough biotin from food?
Most people obtain adequate biotin from a varied diet. Sources include eggs, meat, fish, nuts, seeds, and certain vegetables.
Can biotin interfere with blood tests?
Yes. Supplemental biotin can distort some laboratory assays, including certain thyroid, hormone, and cardiac tests. Tell your clinician and laboratory what dose you take before testing.
Is more biotin always better?
No. High doses have not been shown to provide extra beauty benefits for most nondeficient people and can create important laboratory-test interference.
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Products Featuring Biotin
