Tartrazine, also known by the code E102, is a synthetic coloring widely used in the food industry. 

Riboflavin, also known as vitamin B2, is a food additive classified under the code E101.

Carmine, also known by the code E120, is a natural food coloring obtained from cochineal insects. Cochineal insects are parasitic insects that feed on certain plants, and carmine colorants are extracted from the female cochineal (Dactylopius coccus).