4-NITRO-O-PHENYLENEDIAMINE HCL
Ingredient type: HUMECTANT/WATER-SOLUBLE
✨ Role: 4-nitro-o-phenylenediamine HCl is often used as a coloring agent in cosmetic products, particularly in hair dyes. It helps to provide specific color shades.
Ingredient type: Water-soluble
⚕️ Safety: This ingredient is generally safe when used in concentrations regulated by health authorities. However, its use in hair dyes is closely monitored.
✨ Vegan: Yes, this ingredient is synthetic, making it compatible with vegan formulations.
✨ Note: This ingredient may cause allergic reactions in some individuals, particularly when used in high concentrations or in non-compliant formulations. Patch testing is recommended for users prone to skin reactions. This ingredient is regulated due to its potential for irritation.
Found in: Mainly used in hair dyes and certain makeup products requiring colorants.
Comedogenic rating:


