In the body, Biotin is primarily used to assist with normal growth and development of the skin, hair, nerves and bone marrow. Its co-enzyme properties enable it to metabolise carbohydrate and protein for energy release, and to take part in the production of prostaglandins from essential fatty acids. This vitamin is found in a variety of combined forms in both animal and plant tissues. In the animal it is stored in the liver. Biotin is readily produced by intestinal bacteria. Antibiotics and other medication have been shown to affect the bacterial production of this vitamin.