One N' Only Hair Color Developer 40 - for Intensely Rich, Luminous Enriched with Argan Oil to Condition & Add Shine Contains 12% Hydrogen Peroxide (16 oz)

One N' Only Hair Color Developer 40 - for Intensely Rich, Luminous Enriched with Argan Oil to Condition & Add Shine Contains 12% Hydrogen Peroxide (16 oz)