This is used to produce energy your body needs to function. Biotin Tablets 10,000mcg. What is Biotin?. Biotin 10,000µg 20,000%. Ingredients Bulking Agents (Microcrystalline Cellulose, Calcium Phosphates), D-Biotin (Biotin), Anti-Caking Agents (Magnesium Salts of Fatty Acids).