1. A bifunctional peptide capable of activating collagen synthesis and inhibiting the production of matrix metalloproteinases, characterized in that it has a sequence having three peptide regions A, B and C: the first peptide region A corresponding to the hexapeptide repeated at least three times, and this section A is capable of binding to an elastin-binding receptor protein to stimulate collagen synthesis, the second peptide region B corresponding to a tetrapeptide capable of acting as a competitive and gibitor protease and urokinase cleaves said protease u third peptide portion C corresponding tripeptide occupying at least one active site for matrix metalloproteinases, to allow said proteinaz.2 inhibition. The bifunctional peptide according to claim 1, characterized in that the first peptide region A, stimulating collagen synthesis, has the sequence Xl-Gly-X2-X3-Pro-Gly, and this sequence is repeated at least three times, in which: - X1 corresponds to any amino acid, - X2 corresponds to an amino acid selected from Val, Thr, Gln, Ala, Leu, - X3 corresponds to an amino acid selected from Ala, Leu, Ile. 3. The bifunctional peptide according to claim 2, wherein the first peptide region A of said peptide has the sequence Val-Gly-Val-Ala-Pro-Gly. 4. The bifunctional peptide according to claim 1, characterized in that the second peptide region B cleaved by a protease has the sequence Arg-Yl-Arg-Y2, each of Y1 and Y2 corresponding to an amino acid selected from Ser, Tyr, Gly, Ala, Arg, Val, Leu. 5. The bifunctional peptide according to claim 4, wherein the second peptide region B of said peptide has the sequence Arg-Val-Arg-Leu. 6. The bifunctional peptide according to claim 1, I distinguish1. Бифункциональный пептид, способный активировать синтез коллагена и ингибировать продуцирование матриксных металлопротеиназ, отличающийся тем, что, имеет последовательность, имеющую три пептидных участка А, В и С:- первый пептидный участок А, соответствующий гексапептиду, повторенно
