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B7
Vitamins

Biotin (Vitamin B7)

The beauty vitamin: Supports healthy hair, skin, and nails

AI (Adequate) 30 mcg
Type Water-Soluble
Best Sources Eggs, Nuts, Organ Meats
Popular For Hair, Skin, Nails

Key Benefits

  • Supports healthy hair growth and strength
  • Promotes strong nails
  • Aids in skin health and appearance
  • Essential for energy metabolism
  • Supports blood sugar regulation

What is Biotin?

Biotin, also known as vitamin B7 or vitamin H, is a water-soluble B vitamin essential for metabolizing fats, carbohydrates, and proteins. It's often marketed as a beauty supplement due to its role in maintaining healthy hair, skin, and nails.

Hair, Skin, and Nails

Biotin is a cofactor for carboxylase enzymes involved in synthesizing fatty acids and amino acids needed for keratin production—the protein that makes up hair and nails. Deficiency can lead to brittle nails and hair loss.

Metabolic Function

Beyond beauty, biotin plays a crucial role in energy metabolism, helping your body convert food into usable fuel. It's also involved in gene expression and cell signaling.

Food Sources

Egg yolks, organ meats, nuts, seeds, and legumes are good dietary sources. Note that raw egg whites contain avidin, which binds biotin and prevents absorption—cooking neutralizes this effect.

Supplementation

While biotin supplements are popular for hair growth, benefits are most pronounced in those with actual deficiency. High-dose biotin can interfere with certain lab tests, so inform your healthcare provider if supplementing.

Disclaimer: This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare provider before starting any new supplement regimen.

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