Sr-Oligopeptide-1

Sr-Oligopeptide-1 is a peptide—a short chain of amino acids—designed to work with skin's barrier function and structural integrity. Peptides are fragments of proteins that can penetrate the skin's outer layers and communicate with cells to support various skin functions.This ingredient is classified as a skin protectant, meaning it helps shield skin from environmental stressors and supports the skin's ability to maintain its natural defences. It is typically used in formulations at low concentrations alongside other active and supporting ingredients.

Sr-Oligopeptide-1 functions by signalling to skin cells to optimise their protective behaviour. The skin relies on multiple defence mechanisms—physical barriers, chemical barriers, and immune function—to maintain health. This peptide supports these natural processes, helping skin cells work more effectively at maintaining barrier integrity and responding appropriately to environmental challenges.The ingredient is thought to work at the cellular communication level, encouraging skin to strengthen its own defensive responses rather than acting as a direct shield itself.

Sr-Oligopeptide-1 is most effective as part of a comprehensive skincare routine. Use it daily in a moisturiser or serum formulation. It works well alongside other barrier-supporting ingredients such as ceramides, hyaluronic acid, and niacinamide. Allow time for consistent use—skin barrier support is a gradual process, typically requiring several weeks of regular application to observe noticeable changes.

Sr-Oligopeptide-1 is generally well-tolerated by most skin types. As with all peptide ingredients, those with known sensitivities to peptides should perform a patch test before broader application.