Crayola doesn't provide customers with a list of the ingredients in its markers or other art products because this information is proprietary. However, the company does note the types of ingredients it doesn't use, including eggs, peanuts, milk, D&C Red Dye #40 and casein.
For more information about the safety of Crayola's markers, locate the Material Safety Data Sheet for the specific product. This sheet provides information about any hazardous ingredients in the markers, clean-up procedures, health and fire risks, characteristics and manufacturer information. Crayola offers many types of markers, including regular, bold, glitter, metallic, gel, scented and skinny varieties.