This cream contains two active ingredients, urea and lauromacrogols. Urea is a substance that is found naturally in the skin, which by its nature is very attracted to water. People with eczema and psoriasis appear to have decreased amounts of urea in their skin, so applying urea can help replace it.
When urea is applied to the skin it penetrates the outer layer, where it readily absorbs and retains water. This increases the capacity of the skin to hold moisture, and the skin therefore becomes rehydrated. This soothes and softens the skin, and reduces the scaling and itching of dry skin conditions such as eczema. Lauromacrogols have the properties of local anaesthetics. When applied to the skin they soothe and relieve itching.