Provided are methods of diminishing the signs of aging and/or improving the health of human integuments, such as skin, and compositions comprising peptides useful therefor. The compositions according to the invention comprise a peptide comprising the sequence selected from LRLK (SEQ ID NO: 1), MVV (SEQ ID NO: 2), TAKDGAP (SEQ ID NO: 3), IFGGTVYRS (SEQ ID NO: 4), and RTPKISKPIKFELSG (SEQ ID NO: 5) or a derivative, or fragment thereof, in a topically acceptable vehicle.