Sr-Chicken Polypeptide-1

Sr-Chicken Polypeptide-1 is a peptide — a short chain of amino acids — derived from chicken protein. Peptides are among the smallest protein fragments and are prized in skincare for their ability to penetrate the outer layers of skin more readily than larger proteins.This ingredient is classified as a skin protectant, meaning it works to support and reinforce the skin's natural defences. It functions as a conditioning agent, helping to maintain skin texture and resilience.

The peptide works by providing amino acids that the skin can use to maintain and reinforce its barrier function. Because peptides are smaller than whole proteins, they can penetrate into the outer layers of the epidermis, where they help condition and support skin cells.By reinforcing the skin's natural defences, this ingredient may help reduce transepidermal water loss (TEWL) — the process by which moisture escapes from the skin — thereby supporting overall skin hydration and comfort.

Sr-Chicken Polypeptide-1 is typically found in moisturisers, serums, and barrier-support products. It works well alongside other hydrating and conditioning ingredients and does not require special application instructions — simply use as part of your regular skincare routine, morning or evening.

Generally well-tolerated in cosmetic formulations. Those with poultry allergies should check product ingredient lists, though topical use carries minimal risk compared to ingestion.