What it is
Hydroxyethyl urea is a water-soluble, low-molecular-weight humectant related to urea but with reduced odor and improved stability in formulation. It attracts and binds water, which can support the skin's moisture content and contribute to a smoother, more supple feel. In sunscreens and daily moisturizers it is typically used at modest levels alongside other humectants to balance hydration and texture.
Safety & warnings
Hydroxyethyl urea is generally well tolerated and is not a recognized fragrance allergen, and as a non-oil humectant it is not associated with comedogenicity. As with any ingredient, individual sensitivity is possible.
Origin & sourcing
Synthetic; it is manufactured rather than extracted from a natural source.
Questions everyone asks
What does hydroxyethyl urea do in a sunscreen?
It acts as a humectant, drawing in and helping retain water to keep the formula feeling hydrating and the skin supple.
Is hydroxyethyl urea the same as urea?
It is a chemically related derivative of urea, designed to function as a humectant with reduced odor and good formulation stability.