What it is
Milk Protein is a mixture of proteins isolated from cow's milk, such as casein and whey proteins. In cosmetic products it acts as a skin-conditioning agent and can form a light film that leaves skin feeling smooth and soft. It is used in moisturizing and conditioning formulas, including sunscreens.
Safety & warnings
Derived from milk, so it may be a concern for people with milk-protein allergies who wish to avoid such ingredients.
Origin & sourcing
Animal-derived; obtained from cow's milk.
Questions everyone asks
Where does cosmetic milk protein come from?
It is obtained from cow's milk and consists of milk proteins such as casein and whey.
What does milk protein do in a formula?
It works as a skin-conditioning and film-forming agent, helping leave skin feeling smooth and soft.