Hair skin and nails is a natural blend of vitamin B6, Folic acid, and Biotin to help strengthen nails, grow healthier hair, and give your skin a natural glow. Vitamin B6 is one of the main vitamins responsible for a variety of different functions in the body. Folic acid, another kind of B vitamin, has been used for years as away to prevent and treat low levels of folic acid. Biotin plays a key role in the body, as a main support for healthy skin, hair, and nails.