Urea
尿素
Also known as: Carbamide
What it does
- Powerful humectant
- Keratolytic at higher concentrations
- Enhances penetration
Effective concentration
Minimum 2% Optimal 5-10% Maximum Beneficial 40% (foot creams)
2-10% moisturizing. 10-30% keratolytic. 40%+ nail conditions.
Evidence
Strong evidenceExtensively studied. Naturally present in skin as part of NMF.
Skin types
Well suited for: Dry Very Dry Keratosis Pilaris
Use with caution: Sensitive Broken Skin
Excellent for very dry skin. May sting on broken skin.
Helps with
Dryness Rough Texture Keratosis Pilaris Cracked Skin
Irritation potential
Low
Comedogenic rating
0 / 5
Pregnancy
Generally considered safe during pregnancy
Safe.
Good to know
Dermatologist favorite for very dry skin. Part of skin's natural moisturizing system.
Related ingredients
Have a product with this ingredient?
Paste the full ingredient list to get a personalized analysis.
Analyze a productEducational information only — not medical advice. Always patch test and consult a dermatologist for skin concerns.