Formulated specifically to be used with argan oil permanent hair color. Active conditioners and argan oil provides superior condition and shine. Leaves hair looking healthy, with deep, intensely rich and luminous color. Active conditioners and argan oil provide superior condition and shine. One'n only argan oil color cream developers are specifically designed for use with one 'n only argan oil color cream. This advanced, propriety blend delivers perfect consistency for easy application. Unique complex of active conditioners.