Milk has been used as a cosmetic since antiquity for its moisturising, purifying & nourishing properties. It is still considered an invaluable skincare ingredient due to its rich composition & skin compatibility. Thanks to their excellent absorption & water-binding ability, milk proteins have excellent moisturising properties, offering more than 40% essential amino acids that cannot be synthesised by human cells. They play a vital role in the maintenance of normal cellular metabolic activity, participating in the synthesis of collagen, elastin & keratin. They have a high affinity with the skin’s natural components & are acknowledged to be true epidermomimetic substances, remarkably biocompatible, & therefore perfectly well tolerated.