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Urea

HumectantNatural

Also known as: Carbamide, Hydroxyethyl Urea

A natural component of the skin's NMF (Natural Moisturizing Factor). At different concentrations, it hydrates, exfoliates, or treats hyperkeratotic conditions.

Benefits

Deep hydration (low %), gentle exfoliation (10-20%), treats dry/rough skin, improves penetration of other actives, barrier support.

How to Use

Low concentrations (2-10%) for hydration. 10-20% for mild exfoliation. 20-40% for keratosis and very rough skin (feet, elbows).

Technical Details
pH Range5.0-7.0
Typical Concentrations2%-40%
Research Summary

Well-established component of NMF. Studies show urea improves skin hydration, barrier function, and at higher concentrations treats keratosis pilaris and psoriasis.

What to Avoid With
  • open wounds (high concentrations)
  • inflamed skin (high concentrations)

Cautions

Higher concentrations (>10%) may sting on broken or inflamed skin. Very high concentrations are keratolytic, not just moisturizing.

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Urea — Skincare Ingredient | Skinularity