The task of this invention is in use of composition containing natural metabolites—amino acids, and in method of its administration which make it possible to increase skin repigmentation through sulfurcontaining compounds rise and activation of endogenic metabolic reactions, and to get persistent normalization of melanogenesis thus improving skin integument and as a consequence patient's quality of life.Composition includes L cystine, L glutamic acid and glycine in the following quantity, mg: L cystine85 ± 10%, L glutamic acid85 ± 10%, Glycine85 ± 10% The amino acid composition mentioned above must be administered 3 times a day for 5 weeks independent of meal in accordance with method of increase of skin integument repigmentation in vitiligo. The course can be repeated in 4-5 weeks.