Hydrolyzed Milk

Hydrolyzed milk is a processed form of milk protein that has been broken down into smaller molecular fragments through hydrolysis. This breakdown makes the protein smaller and more able to penetrate or interact with the skin's outer layers. It is derived from cow's milk and functions primarily as an emollient and skin conditioning agent.In skincare formulations, hydrolyzed milk works to coat and soften the skin surface, helping to improve texture and maintain moisture. It is a naturally derived ingredient with a history of use in cosmetics, though it remains less common than many synthetic …

Hydrolyzed milk proteins work by forming a protective film on the skin's surface. This film helps to reduce transepidermal water loss—the evaporation of moisture from deeper skin layers—thereby supporting hydration and softness. The proteins may also interact with the skin's natural moisturising factors to enhance conditioning.Because the protein is hydrolyzed (broken into smaller pieces), it is more likely to remain on the skin surface rather than penetrating deeply, making it suitable for a broad range of formulations and skin types.

Hydrolyzed milk is typically found in moisturisers, serums, and conditioning treatments. It works well in layered routines and pairs with most other skincare ingredients. Apply to clean, damp skin for optimal hydration benefit. No special precautions are needed for frequency of use; it can be incorporated into daily routines as part of your regular moisturiser or treatment product.

Generally well-tolerated by most skin types. Those with cow's milk allergy should exercise caution, as topical exposure may trigger a reaction in sensitive individuals; patch testing is recommended before full application.