Colloidal oatmeal is finely ground oatmeal. Oatmeal has been used as a skin cleanser and dermatological treatment since ancient times. It was believed to be beneficial as cleansing agent, aid in moisturising and even have anti-inflammatory properties. Oatmeal was often used as a home remedy relieve skin irritation and itching from poison ivy or insect bites. Oats also contain chemicials known as saponins that are recognised for their cleansing properties.
All AVEENO® body products still contain naturally active colloidal oatmeal and/or oat extracts to this day.