Urea has long been used in cosmetic products due to its well-researched hydrating and moisturising properties. It is still one of the most powerful humectants.

Because of its ability to dissolve intercellular cement (substance holding epithelial cells together) in the corneum layer, it aids in natural keratinocyte exfoliation. system Urea, due to it's anti-microbial properties, may also be used as part of a product's preservative system to prevent microorganisms growth. Urea has also been shown to improve the penetration and absorption of other active ingredients, alleviate itchiness, and leave the skin supple. According to research, urea does not cause photo allergy, phototoxicity, or sensitisation.

See also:
Humectants