Urea (Skincare)

Urea is a naturally occurring compound found in the body and is a key component of the skin's Natural Moisturising Factor (NMF). In skincare formulations, particularly those designed for tanning or post-tanning care, urea serves a dual purpose. Firstly, as a humectant, it draws water from the atmosphere and deeper layers of the skin to the surface, providing essential hydration. This is crucial for maintaining supple, healthy-looking skin, which is ideal for an even and long-lasting tan. Secondly, urea possesses keratolytic properties, meaning it helps to break down the bonds between dead skin cells on the stratum corneum. This gentle exfoliation removes dry, flaky patches, revealing smoother, more radiant skin beneath. For tanners, this means a better canvas for product application and a more uniform colour development. Concentrations of urea in skincare typically range from 5% to 10%, with higher concentrations sometimes used for specific therapeutic purposes.