The complex dietary supplement "Biotin" is recommended as an additional source of vitamin H (vitamin B7). The following signs indicate a lack of biotin in the body: -dryness and peeling of the skin; -hair loss and tarnishing; -brittle nails; - muscle weakness. Vitamin H (B7) is a key element in the synthesis of fatty acids; it regulates the metabolism of proteins, fats and carbohydrates. Doctors recommend that obese people add vitamin B7 to their diet. Biotin got its second name, "beauty vitamin", due to the fact that it promotes the formation of beneficial intestinal microflora, has a beneficial effect on the nervous system, heals the skin, hair and nails. Doctors often prescribe vitamin B7 in the treatment of dermatitis seborrhea. 1 capsule of Biotin contains 5000 mcg of vitamin N. Adults are recommended to take 1 capsule 1 time a day with meals. The duration of the course is 1 month. If necessary, the course must be repeated.