Hairs are horn derivative skin of the person. They carry out protective and esthetic function. Hair protects the head of the person from overcooling and mechanical damages. Besides, healthy, beautiful and well-groomed, they do the person more attractive in communication with other people. Hair live from 2 to 4 years, grow by 12 cm a year and to 8 m during all life. Their total number on the head makes from 90 to 150 thousand.
That hair always remained healthy and strong, it is necessary to provide to them good nutrition, with enough of the protein, useful fats, crude carbohydrates and vitamins, micro cells, and also amino acids.