Tetrapeptide-27

Tetrapeptide-27 is a short-chain peptide—a fragment composed of four amino acids linked together. Peptides are naturally occurring compounds found throughout the skin, where they play important roles in cell signalling and tissue structure. In skincare formulations, tetrapeptide-27 is used as a skin conditioning agent.The ingredient works at a molecular level to interact with skin cells, helping to maintain and support the skin's natural functions. As a peptide, it may help communicate with skin cells to reinforce structural proteins and support overall skin health.

Peptides function as cellular messengers in the skin. Tetrapeptide-27 can interact with skin cells and potentially influence their behaviour through signalling pathways. This may help support the skin's natural maintenance of structural proteins and overall tissue integrity.Because peptides are relatively small molecules, they can penetrate the outer layers of skin more effectively than larger proteins, allowing them to deliver their conditioning benefits where they're needed.

Tetrapeptide-27 is typically found in serums, moisturisers, and treatment products. Use it as directed in the product instructions, usually once or twice daily. It works well in layered skincare routines and can be combined with other active ingredients, though it's sensible to introduce any new product gradually to monitor how your skin responds.

Peptides are generally well-tolerated by most skin types. As with any new skincare ingredient, perform a patch test first if you have particularly sensitive skin or known allergies to peptide-containing products.