Dietary Supplement. Promotes Carbohydrate & Energy Metabolism* This is an important B-vitamin that provides dietary support for healthy hair and nails. Biotin also aids in the metabolism of carbohydrates, protein, and fats.*. Pharmacist recommended. No preservatives added. No artificial color, gluten or lactose. Promotes energy metabolism* *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. 100% Satisfaction guaranteed with all Walgreens products or your money back.