Food colouring or colour additive, is pigment or substance that imparts colour when it is added to food or drink. They come in many forms consisting of liquids, powders, gels, and pastes. Food colouring is used both in commercial food production and in domestic cooking. Food colorants are also used in a variety of non-food applications including cosmetics, pharmaceuticals, home craft projects, and medical devices.
Allura Red, Brilliant Blue, Carmoisine, Chocolate Brown, Erythrosine, Ponceau 4R, Red 2G, Sunset Yellow, Tartrazine, etc
Sudan I, II, III, IV, Para Red, etc