A method for reducing the formation of and/or treating skin stretchmarks is described. The method is characterized in that a composition is applied to the areas of skin liable to form or comprising stretchmarks, including skin of the thighs, abdomen, and/or breast. The applied composition includes a soya peptide, a tripeptide consisting of the amino acids glycine, histidine, and lysine, and/or mixtures of the soya peptide and tripeptide in a suitable application vehicle. The composition displays good skin tolerance.
