Black Tops Art, Craft and Decorative Colours. The majority of these colours are made up of base pigments E127 and E123. E127 — red 3 — has synthetic iodine incorporated. This base is used for the pink and purple colours. Daily intake 0.2mgs/kg body weight at full strength. A 12/15% is all that is used with our product as high concentrations could interfere with the iodine metabolism However, with the above concentrations the interference cannot be readied through the consumption of food. E127 is the colour used in candied cherries that go into confectionery, baking and decorations. The concentration of the colour used is higher. Pharmaceutical companies have no legislations on the concentration or the amount used. E123 – red 9 – synthetic aze dye. Again this is a base colour for purple/red colours.