What it is
Urea is a component of urine. However, Urea found in cosmetics is synthetic.
What it does
Urea is a humectant and a skin condition agent. It hydrates skin and is also an exfoliant.
Urea has water-binding properties and, when ingredients are added to a product, also has the ability to minimise changes in the acid and base balance of the product.
When used in large quantities, Urea can be irritating and cause inflammation.