Biotin (Vitamin B7) in Multivitamins

Informational only: This page is not medical advice. Consult a healthcare provider before starting supplements.

Biotin is a water-soluble B-vitamin that serves as a coenzyme for carboxylase enzymes involved in fatty acid synthesis, amino acid metabolism, and gluconeogenesis. It is often marketed for hair and nail health.

Benefits

  • Essential coenzyme for fatty acid synthesis
  • Required for amino acid catabolism
  • Supports glucose metabolism
  • Supports hair and nail growth (at adequate intake levels)
  • Critical for fetal development

Recommended Daily Value

30mcg for adults (Adequate Intake)

Food Sources

  • Egg yolks (cooked)
  • Organ meats
  • Nuts and seeds
  • Salmon
  • Legumes

Scientific Reference

Mock DM. Biotin. In: Coates PM et al, eds. Encyclopedia of Dietary Supplements. 2010.

Multivitamins Containing Biotin (Vitamin B7)

22.5mcg
$55
capsule

The most evidence-based daily multivitamin on the market. Every one of its 26 ingredients is backed by human RCTs at the exact dose used in clinical trials — methylated B vitamins, glycinate-form minerals, 200mg hyaluronic acid for skin health, TMG for cognition and exercise, and microencapsulated carotenoids for eye protection. It deliberately excludes Vitamin A and E based on safety research, and consolidates 6–8 separate supplements into one formula.