Aveeno bath oil contains colloidal oatmeal, which is an extract from the grain of Avena sativa (oats or oatmeal). It is used in homeopathy to prepare moisturising skin preparations. The oil also contains liquid paraffin (sometimes known as mineral oil) and sunflower seed oil, and works by providing a layer of oil on the surface of the skin to prevent water evaporating from the skin surface. Moisturising bath oils are useful for dry skin conditions, such as eczema and dermatitis, which get worse when the skin is allowed to dry out. Used regularly, moisturisers and moisturising bath oils help restore the skin's smoothness, softness and flexibility by replacing lost moisture and helping the skin retain moisture. This helps reduce scaling, itching and redness. Moisturising bath oils are useful for dry skin conditions, such as eczema and dermatitis, which get worse when the skin is allowed to dry out. Used regularly, moisturisers and moisturising bath oils help restore the skin's smoothness, softness and flexibility by replacing lost moisture and helping the skin retain moisture. This helps reduce scaling, itching and redness.