NB BIOTIN 5000 MCG 72SNB Biotin 5000 mcg is a dietary supplement that provides high strength biotin (Vitamin B7), an essential water soluble vitamin that plays a key role in maintaining healthy hair, skin, and nails, and supports energy metabolism. Uses: Promotes strong, healthy hair and nails. Supports skin health. Aids in energy production by converting food into energy. Helps maintain normal metabolism of carbohydrates, fats, and proteins. Benefits: Improves hair