Urea is a naturally occurring compound in the human body that plays an essential role as a humectant in trichological (hair and scalp care) cosmetics. Known for its impressive moisturizing properties, urea helps draw and retain moisture in the skin, making it an ideal ingredient for those with dry or sensitive scalps.

When used in the right concentration, urea can penetrate the stratum corneum, the outermost layer of the skin, where it acts as a keratoplastic agent. This means it softens and smooths the skin by breaking down keratin, which makes the scalp and hair feel softer and more hydrated.

Urea is widely considered safe for use in cosmetic products. In fact, the Cosmetic Ingredient Review (CIR) panel deemed it safe for use in 2005, ensuring consumers can benefit from its moisturizing effects without concern.

For anyone dealing with scalp dryness or irritation, urea is a reliable, skin-friendly ingredient to include in their hair care routine, offering both hydration and comfort.