Made from bamboo extract, a plant famed for its rapid, strong growth, Lindens Silica 250mg Capsules are fortified with biotin, which contributes to the maintenance of normal skin and hair, and selenium, a powerful antioxidant which contributes to the maintenance of normal hair and nails. DIRECTIONS: Take one capsule per day with a little water INGREDIENTS: tabashir (bamboo extract: 80% absorbable silica), bulking agent (brown rice flour) shell (bovine gelatin), l-selenomethionine, biotin (pure).