Quick Answer
Use iHerb discount code KHQ339 at checkout.
Nourishes Hair Skin and NailsVitamin SupplementGet glowing! Often called "the beauty nutrient" because of the nourishment it delivers for healthy hair and scalp this member of the B-vitamin complex is a key cofactor of enzymes involved in fatty acid metabolism helping to supply cells with energy. Swanson Premium Biotin delivers 5 000 mcg (5 mg) of D-biotin the naturally occurring biologically active form. One reviewer states that Swanson Premium is the best biotin brand because of its small pill size compared to other brands.