Potassium Cocoyl Hydrolyzed Keratin

Potassium cocoyl hydrolyzed keratin is a surfactant derived from coconut oil that has been chemically modified to bond with hydrolyzed keratin — a protein that mimics the structure of natural skin and hair proteins. This combination creates a conditioning agent that can cleanse whilst also depositing a protective, softening layer.It functions as both a mild cleanser and a skin and hair conditioning ingredient, making it popular in products designed to balance efficacy with gentleness.

As a surfactant, this ingredient has both water-loving and oil-loving properties, allowing it to lift away dirt and excess oils from the skin whilst remaining mild enough for regular use. The keratin component adheres to the skin surface, creating a conditioning film that temporarily smooths and softens.Unlike harsher surfactants, the coconut-derived structure and protein content mean it is less likely to disrupt the skin's natural barrier or cause irritation, particularly in formulations where it is one of several cleansing agents rather than the sole one.

This ingredient is typically found in cleansers, shampoos and conditioning products rather than serums or moisturisers. Use as directed by the product instructions. If using a cleanser containing this ingredient, apply to damp skin, massage gently, and rinse thoroughly. For best results, follow with appropriate toners or moisturisers suited to your skin type.

Generally well-tolerated and considered safe for topical use in cosmetics. Those with coconut sensitivity or very reactive skin should patch-test first, as surfactants can occasionally trigger irritation in sensitive individuals.