Biotinis a member of the B-vitamins that is used by the body for the production of various enzymes which helps body metabolise fats and proteins. It plays a special role in helping the body to use glucose (its main fuel) and promote healthy nails and hair. Biotin is very useful for those who need to increase their energy level, for people under stress to help the mind and body cope better, those who consume large amounts of alcohol. It may be a good supplement for diabetics and it is necessary for people suffering with hair loss or hair related problems.