Biotin, also called vitamin H or vitamin B₇, is a water-soluble B vitamin. It is involved in a wide range of metabolic processes, both in humans and in other organisms, primarily related to the utilization of fats, carbohydrates, and amino acids. Wikipedia Biotin is a water-soluble vitamin that's a part of the vitamin B family. It's also known as vitamin H. Your body needs biotin to help convert certain nutrients into energy. It also plays an important role in the health of your hair, skin, and nails. 5,000 mcg Biotin Per Serving (2 Gummies), 2,500 mcg Biotin Per 1 Gummy