Biotin, also known as vitamin H or coenzyme R, is a water-soluble B-vitamin (vitamin B7).

It is composed of a ureido (tetrahydroimidizalone) ring fused with a tetrahydrothiophene ring. A valeric acid substituent is attached to one of the carbon atoms of the tetrahydrothiophene ring. Biotin is a coenzyme for carboxylase enzymes, involved in the synthesis of fatty acids, isoleucine, and valine, and in gluconeogenesis.

Function:
1.Biotin(Vitamin H ) is the essential Nutrients of the retina,the Biotin deficiency could cause the Dry eyes, keratization, inflammation, even blindness.
2.Biotin(Vitamin H) can improve the body's immune response and resistance.
3.Biotin(Vitamin H) can maintain normal growth and development.
4.Biotin(Vitamin H) deficiency will cause reproductive functions recession, bad bone growth and the obstruction of embryo and early childhood growth.
6.To help fat, glycogen and the synthesis and metabolism of amino acids in the human body is normal;
7.To promote sweat glands, nerve tissue, bone marrow, the male gonads, the skin and hair of normal operation and the growth, relieve eczema, dermatitis symptoms;
8. To prevent white hair and hair loss, help to cure baldness.

Application:
1.Cosmetics for Hair
Biotin supplements are often recommended as a natural product to counteract the problem of hair loss in both children and adults.The signs and symptoms of biotin deficiency include hair loss which progresses in severity to include loss of eye lashes and eye brows in severely deficient subjects. Some shampoos are available that contain biotin, but it is doubtful whether they would have any useful effect, as biotin is not absorbed well through the skin.
2.Medicine
Diabetics may also benefit from biotin supplementation. In both insulin-dependent and non-insulin-dependent diabetes,supplementation with biotin can improve blood sugar control and help lower fastin
3.Food