Dawn is an American brand of dishwashing liquid owned by Procter & Gamble. Introduced in 1973,[1] it is the best-selling brand of dishwashing liquid in the United States.[2] Besides being used for dishwashing purposes, Dawn products are also used to remove grease from other items, such as animal fat spilled onto highways,[3] and oil on animals, such as during the Exxon Valdez and Deepwater Horizon oil spills.[4]