Hydroxypropyl-p-phenylenediamine HCl

Ingredient type:HUMECTANT/WATER-SOLUBLE

✨ Role: Hydroxypropyl-p-phenylenediamine HCl is generally used as a color precursor in hair dyes. It helps set color by penetrating the hair fiber and oxidizing to form a color pigment.

Ingredient type: Water-soluble

‍⚕️ Safety: this ingredient is generally considered safe when used as directed, although some people may experience allergic reactions.

✨ Vegan: Yes, this ingredient is generally synthetic and suitable for vegan formulations.

✨ Worth knowing: Although effective for coloring hair, it can be irritating to the skin in some sensitive individuals. A patch test is recommended before use.

Present in: Mainly present in hair dyes and sometimes in certain hair care products to stabilize color.

Comedogenic rating: 

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