Urea

Urea

Moisturizes the skin, smooths, and relieves itching. As one of the most critical soluble substances of the stratum corneum, urea is of increasing importance in dermatological therapy and cosmetics. A lack of urea, a natural moisturizing factor (NMF), identifies diseases such as atopic dermatitis or clinically dry skin. Normal skin contains about 1 % urea.

This NMF improves skins' water retention ability, revealing a smoother, supple, and youthful appearance. In addition, urea may act as a mild keratolytic agent with higher concentrations, eliminating old and dead cells from the skin surface. Furthermore, in complex formulations, it enhances penetration of other ingredients, boosting effectiveness.