Urea

Benefits
RegenerationHair ConditioningProtectionSoothingMoisturizing

What is Urea?

Urea, chemically known as carbamide (CH4N2O), is a simple organic compound naturally present in human skin as part of the natural moisturizing factor. Synthetically produced for cosmetics, it appears in moisturizers, lotions, creams, and hair products. As a humectant, it binds water molecules to the skin's outer layer, boosting hydration levels and maintaining plumpness. Urea also functions as a mild keratolytic, weakening bonds in the tough keratin protein of the stratum corneum, which promotes smoother texture through gentle cell turnover. In hair formulations, it enhances conditioning by reducing static and improving manageability. Buffering properties help stabilize product pH, while its skin-softening effects support overall barrier health in diverse cosmetic applications.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1-3 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Buffering agent
Maintains the pH stability of a formulation.
Humectant
Attracts and holds water in the stratum corneum, boosting hydration and plumpness; commonly used in moisturizers, cleansers, and hair conditioners.
Antistatic agent
Reduces static electricity and flyaways by improving surface conductivity, enhancing hair manageability and smoothness in conditioners and styling products.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Enhances moisture retention for plump, hydrated skin and hair.

Softens rough textures and soothes irritation.

Supports renewal and protection of the skin barrier.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with dry or rough skin seeking intense hydration.
People with known sensitivity to urea.
People with coarse or static-prone hair needing conditioning.
Individuals applying on broken or irritated skin.
Those aiming to improve skin smoothness and flexibility.
Those preferring to avoid potential mild stinging from higher strengths.

Safety Notes

  • Rated low hazard by safety assessments across typical cosmetic uses.
  • Well-tolerated in most formulations when used as directed.

Frequently Asked Questions about Urea

What does urea do in skincare?

It attracts water to hydrate skin, softens keratin for smoothness, and conditions hair by reducing static.

Is urea safe for daily use?

Yes, safety reviews confirm it's suitable in cosmetics at standard levels for most users.

Can urea help dry skin?

Its humectant action boosts moisture in the skin's outer layer, aiding hydration.