Cromakey-Oil is the high-tech oil coloring system which becomes a cationic gel when mixed with the Cromakey-In Activator. The formula, that contains no ammonia, colors and lightens by up to 4 tones with extraordinary gentleness, protecting the hair’s health and balance. The essential micro pigments in Cromakey-Oil guarantees intense, natural colors that will withstand a large number of washes. Cromakey-Oil does not stain the scalp and leaves the hair bright and shining. It contains oleic alcohol to assist color penetration instead of ammonia.