Sh-Polypeptide-13

Sh-Polypeptide-13 is a peptide—a chain of amino acids—designed to support skin's protective mechanisms. Peptides are naturally occurring compounds found in the skin, and when formulated into skincare products, they can help reinforce the skin's structural integrity and defensive capacity.This ingredient functions as a skin protectant, working to maintain and strengthen the skin barrier. The skin barrier is crucial for keeping irritants out and moisture in, making barrier support a foundational aspect of healthy skin maintenance.

The skin relies on multiple layers of protection—physical, chemical, and immune-based—to defend itself and maintain function. Sh-Polypeptide-13 operates as a protective agent, helping to reinforce these natural defences. Peptides can signal to skin cells, encouraging them to maintain barrier function and structural proteins.By supporting the skin's inherent protective systems, this ingredient helps create conditions for healthier barrier function. This is particularly relevant as the skin's protective capacity naturally declines with age and cumulative environmental exposure.

Sh-Polypeptide-13 is typically used as part of a complete skincare routine rather than as a standalone treatment. It works well in serums, moisturisers, and protective products applied to clean skin. For best results, layer it with other barrier-supporting ingredients such as hydrating humectants or occlusive moisturisers to create a comprehensive protective strategy.

Sh-Polypeptide-13 is generally well-tolerated across skin types. As with any skincare ingredient, discontinue use if irritation occurs and perform a patch test if you have sensitive or compromised skin.