Also known as: Carbamide
Urea is a naturally occurring component of the skin's natural moisturising factor (NMF). At low concentrations (2–10%) it acts as a powerful humectant, drawing water into the skin. At higher concentrations (10–40%) it becomes keratolytic, breaking down the protein bonds in thickened or rough skin. It is particularly effective for dry, rough, or callused skin and is a key ingredient in treatments for conditions like keratosis pilaris.
Comedogenicity ratings are based on the rabbit ear assay model. Individual skin responses vary. See our article on comedogenicity ratings for context.
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