Patent ID: 8440615

Claim:
A cosmetic or pharmaceutical composition, comprising: a peptide in a physiologically acceptable medium, said peptide being an active-principle protector of mitochondria, alone or in association with at least one other active principle, wherein, said peptide is capable of activating aconitase, said peptide includes 3 to 6 amino acid residues, and said peptide has a sequence according to formula (I): R 1 -(AA) n -X 1 -X 2 -X 3 -X 4 -X 5 -X 6 -(AA) p -R 2 in which X 1 is serine, X 2 is cysteine, X 3 is threonine or isoleucine, X 4 is glutamine, asparagine, or no amino acid, X 5 is threonine, serine, or no amino acid, X 6 is isoleucine, glutamine, or no amino acid, AA represents any amino acid, or derivative thereof, lacking sequence of aconitase, and n and p are 0 R 1 represents the primary amine function of the N-terminal amino acid, free or substituted with a protector group selected from the group consisting of an acetyl group, a benzoyl group, a tosyl group, and a benzyloxycarbonyl group, R 2 represents the hydroxyl group of the carboxylic acid function of the C-terminal amino acid, free or substituted with a protector group selected from (i) an alkyl chain of C 1 to C 20 or (ii) an NH 2 group, an NHY group, or an NYY group, with Y representing a alkyl chain of C 1 to C 4 .