Cosmate®PEP Peptides/Polypeptides are made up of amino acids which are known as the “building blocks” of proteins in the body. Peptides are much like proteins but are made up of a smaller amount of amino acids. Peptides essentially act as tiny messengers that send messages directly to our skin cells to promote better communication. Peptides are chains of different types of amino acids, like glycine, arginine, histidine, etc.. Anti-aging peptides boost that production back up to keep the skin firm, hydrated, and smooth. Peptides also have natural anti-inflammatory properties, which can help clear up other skin issues unrelated to aging.Peptides work for all skin types, including sensitive and acne-prone.