Question: is there formaldehyde in hair dye?
Answer: Hair dyes are considered to be a cosmetic, so the FDA barely regulates them, if at all. They can take action if the product is deemed to be harmful, but that takes a lot of time and proof. ... So chemicals like coal tar, formaldehyde, Fragrance, parabens, ammonia, & DMDM Hydantoin easily sneak their way into our hair dyes.