Kojyl Carboxy Dipeptide-23

Kojyl Carboxy Dipeptide-23 is a synthetic peptide compound that combines kojic acid chemistry with dipeptide structure. It functions as both an antioxidant and a chelating agent, meaning it can neutralise free radicals and bind to metal ions that may accumulate in the skin from environmental exposure.This ingredient is designed to support the skin's natural protective mechanisms without the irritation potential sometimes associated with standalone kojic acid.

The ingredient works through two mechanisms. As an antioxidant, it donates electrons to stabilise free radicals, preventing them from damaging skin cells and collagen. Its chelating function allows it to bind to metal ions (such as iron and copper) that can otherwise catalyse oxidative reactions in the skin.By reducing the availability of these metal ions, it helps minimise the cascade of oxidative damage that contributes to visible ageing and inflammation.

This ingredient is typically found in serums, essences, and treatment creams. It works well in layered routines alongside vitamin C, niacinamide, or other antioxidants. Allow each product to absorb before applying the next. Consistency matters more than concentration—use as directed by the product formulation rather than applying additional amounts.

Kojyl Carboxy Dipeptide-23 is generally well-tolerated across most skin types. As with any new skincare ingredient, patch test first if you have sensitive or reactive skin.