Est. 1967 Dietary Supplement Mason Guarantee - Laboratory Tested cGMP Certified Gluten Free Contains bovine-derived ingredients May Support - Healthy Hair, Skin and Nails Biotin, also known as vitamin H or B7, has the primary role to support the health of skin, nerves, digestive tract, metabolism and cells. Due to its water solubility, this vitamin is regularly diminished and therefore needs replenishment. Biotin supplements health benefits may support metabolism improvement, tissue maintenance, healthy skin and weight loss. Available in different strengths, discuss with your physician for optimal dosage intake depending on your health condition.