Pentapeptide-44

Pentapeptide-44 is a short chain peptide—a fragment of amino acids—formulated to work with the skin's own defence systems. Peptides are commonly used in skincare because they can communicate with skin cells and influence their behaviour at a molecular level.This ingredient is classified as a skin protectant, meaning it is intended to help maintain the skin's barrier function and support its natural ability to defend against environmental stressors.

Peptides function as signalling molecules in the skin. Pentapeptide-44 is believed to interact with skin cells in ways that encourage them to maintain and reinforce their protective functions. This may involve supporting the skin's inherent immune response and its barrier integrity.The skin relies on multiple layers of defence—physical, chemical, and biological. By working within these existing systems, peptides like this one aim to optimise rather than replace the skin's natural protective capacity.

Pentapeptide-44 is typically incorporated into serums, moisturisers, or treatment products at varying concentrations. For best results, use consistently as part of your routine rather than occasionally. It pairs well with other barrier-supporting ingredients such as ceramides or niacinamide, and can be layered into both morning and evening regimens depending on the formulation.

Peptides are generally well-tolerated by most skin types. As with any ingredient, patch test first if you have sensitive skin or are prone to reactions.