Energy Production* Amino Acid Metabolism* Immune Function*. STRONGER HAIR SKIN & NAILS - Biotin, also known as B7 or vitamin H, a powerful B complex vitamin that supports the optimal health of the skin, hair, eyes, liver, and nervous system. Vegetarian FRIENDLY - Our biotin tablets are vegetarian friendly. Free of starch, soy, yeast, wheat, egg, artificial color, flavor, & preservatives. Made in the USA with Strict GMP standards.