Cosmetic ingredient

HYDROLYZED MILK PROTEIN

Hydrolyzed Milk Protein is a mixture made by breaking down milk proteins through acid, alkaline, or enzymatic hydrolysis. The result consists mainly of amino acids, peptides, and proteins rather than one intact milk-protein molecule. This collection of fragments is what appears on an ingredient list as HYDROLYZED MILK PROTEIN.

INCIHY1 products
CAS number
92797-39-2
EC number
296-575-2

HYDROLYZED MILK PROTEIN: what it is

Hydrolyzed Milk Protein is a mixture made by breaking down milk proteins through acid, alkaline, or enzymatic hydrolysis. The result consists mainly of amino acids, peptides, and proteins rather than one intact milk-protein molecule. This collection of fragments is what appears on an ingredient list as HYDROLYZED MILK PROTEIN.

The word “hydrolyzed” is the meaningful distinction: it shows that the milk proteins were broken down before being added to the formula. It is therefore not the same material as whole milk or an intact milk protein; it is made up of components of different sizes after that process.

HYDROLYZED MILK PROTEIN: what it does in cosmetics

In skin-care products, Hydrolyzed Milk Protein is used for conditioning: it contributes to a softer-looking, softer-feeling finish. In hair products, conditioning is intended to improve how the hair feels, while its antistatic role helps reduce the static electricity that can leave strands flying apart or looking frizzy.

Analyses of hydrolyzed bovine milk proteins have identified short peptides in these materials. That finding helps explain why the ingredient is a mixture of protein fragments, but it comes from food and analytical samples; it does not demonstrate a specific effect from a topical cosmetic on skin or hair.

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