INCI: Hydroxyethyl Urea
Hydroxyethyl urea is a urea derivative (INCI: Hydroxyethyl Urea; CAS 1320-51-0; EC 215-304-0) formed by the reaction of urea with ethylene oxide, resulting in a molecule that combines urea's powerful water-binding ability with improved skin feel. It functions as a strong humectant and skin conditioner, drawing moisture into the stratum corneum and improving skin elasticity and hydration. Unlike its parent molecule urea, it delivers moisturising performance without the sticky or tacky feel sometimes associated with glycerin, making it particularly valued in lightweight, elegant formulations.
Category
Humectant, Skin Conditioning
Irritation Risk
Low
Skin Types
all skin types, dry, dehydrated, combination, oily, acne-prone, sensitive, mature
deep humectant hydration, improved skin elasticity, smoothing rough texture, enhanced skin feel compared to glycerin, non-sticky moisture retention, hair conditioning
Hydroxyethyl urea is well tolerated at typical cosmetic concentrations (2–10%). As a urea derivative it shares the mild irritancy profile of its parent compound. No EU CosIng Annex II or III restrictions apply. Individuals with known hypersensitivity to urea-based compounds should patch test, but true sensitisation is rare. Not a known irritant or allergen in standard formulations.
Hydroxyethyl urea does not increase photosensitivity. It has no UV-absorbing structure and does not affect the skin's response to UV radiation. No SPF precautions are required based solely on the presence of this ingredient.
Hydroxyethyl urea is considered safe for topical use during pregnancy at standard cosmetic concentrations. It is a urea derivative with no known reproductive or developmental toxicity. No concerns are flagged in available cosmetic safety databases. Systemic absorption from topical leave-on products at typical use levels is negligible.
Hydroxyethyl urea is a urea derivative (INCI: Hydroxyethyl Urea; CAS 1320-51-0; EC 215-304-0) formed by the reaction of urea with ethylene oxide, resulting in a molecule that combines urea's powerful water-binding ability with improved skin feel. It functions as a strong humectant and skin conditioner, drawing moisture into the stratum corneum and improving skin elasticity and hydration. Unlike its parent molecule urea, it delivers moisturising performance without the sticky or tacky feel sometimes associated with glycerin, making it particularly valued in lightweight, elegant formulations.
Individuals with known hypersensitivity to urea or urea derivatives should review the considerations above before use.