Composition per capsule: Active ingredients: Brewer's Yeast 200 mg, Selenium Yeast 25 mg (Equivalent to 50 µg of Selenium) Inactive ingredients: Mannitol, Microcrystalline Cellulose, and Gelatin. The combination of brewer's yeast and selenium results in the correct balance of our hair and nails. Selenium is an antioxidant that prevents cellular aging, stimulates the immune system, and prevents heart diseases. Vision, skin, and hair depend on selenium. Skin: psoriasis, premature aging, and elasticity. Hair: Prevents greasiness and gives strength to the hair. Vision: Helps prevent cataracts and macular degeneration. Brewer's yeast is found in barley, it consists of plant-based proteins and vitamins. They provide proteins, minerals, and vitamins necessary for the good health of our hair. Specifically, proteins strengthen skin, hair, and nails. Hair: Brewer's yeast contains water-soluble vitamins: B1, B2, B6, niacin, and biotin, all responsible for the good health of the hair. Avoiding dullness of the hair. Nails: Helps strengthen them, avoiding brittle nails. Skin: Helps rejuvenate it, preventing dry skin. Directions for use: As a dietary supplement, take two capsules daily.