Vitamin B7
(Biotin)
A water-soluble B vitamin critical for metabolism, hair, skin, and nail health; widely used safely as a supplement, especially for deficiency or brittle nails.
Vitamin B7 (biotin) is an essential coenzyme involved in energy metabolism and important for maintaining healthy hair, skin, and nails. Deficiency is rare but can lead to symptoms such as hair loss and dermatitis. Supplements are often used for nail and hair support, typically at doses well above daily requirements.
There is strong evidence for biotin’s role in treating deficiency, brittle nails, and certain metabolic disorders. Evidence for benefits in healthy individuals (hair/nail support) is limited though biotin is widely supplemented for these purposes.
Supports healthy hair, skin, and nails
ModerateBiotin supplementation improves hair growth and nail strength in individuals with deficiency or brittle nails; evidence for benefit in healthy individuals is weak but it remains popular for cosmetic purposes.
Essential cofactor for energy metabolism
StrongActs as a coenzyme for carboxylases in fatty acid synthesis, gluconeogenesis, and amino acid metabolism, supporting overall energy production.
Prevents and treats biotin deficiency
StrongSupplements rapidly resolve hair loss, dermatitis, and neurological symptoms associated with deficiency, though deficiency is rare in healthy adults.
Potential metabolic support for blood sugar regulation (preliminary)
LimitedHigh-dose biotin may improve glycemic control in type 2 diabetes, but more evidence is needed before recommendation.
Son güncelleme: