Red 6 (Ci 15850)
CI 15850 (also known as Red 6 or Red 7) is a synthetic azo dye with the chemical name Disodium 3-Hydroxy-4-[(4-Methyl-2-Sulphonatophenyl)Azo]-2-Naphthoate (CAS# 5858-81-1). It is classified as a cosmetic colorant under the official CosIng database and is subject to cosmetic restriction IV/27. It is widely used in lip products, blushes, eyeshadows, and nail products to impart red and pink hues.
CI 15850 functions primarily as a cosmetic colorant, providing red and pink pigmentation to a wide range of makeup formulations. It has no established skin-benefit claims beyond its coloring function.
Subject to cosmetic restriction IV/27, meaning its use is regulated and limited to specific applications or concentrations as defined by cosmetic regulatory authorities.
