American Crew recommends American Crew 15 volume Developer in order to produce optimal results for gray blending. Use in conjunction with American Crew Precision Blend Shades: Light, Medium Ash, Medium Natural and Dark.
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Ingredients
Aqua/Water/Eau, Hydrogen Peroxide, Cetearyl Alcohol, Acrylates/Steareth-20 Itaconate Copolymer, Ceteareth-23, Ceteareth-60, Cetyl Alcohol, Phosphoric Acid, Sodium Stannate, Tetrasodium Etidronate, Methylparaben. B03136.