four reasons color mask - caramel - (19 colors) toning treatment, color depositing conditioner, tone & enhance color-treated hair - semi permanent hair dye, vegan and cruelty-free, 6.76 fl oz four reasons color mask is a unique intensive treatment that maintains and deepens the present shade of colored hair. it’s perfect for refreshing the shade of color treated hair between salon visits, darkening or lightly toning to give you the look of freshly treated hair. color treated requires some extra tlc, so color mask reconstructive treatment is formulated with provitamin b5 and keratin derivatives. these work to repair and reconstruct chemically treated and damaged hair, keeping your locks strong and beautiful. the color mask reconstructive treatment is available in 16 unique shades. use them alone or mix them together to create your own custom color. everyone’s hair is different and their treatment should be as well. all kc professional products are paraben free and cruelty free, never ever tested on animals. kc professional takes pride in ecological and sustainable practices, while still creating professional quality products. package contains (1) kc professional color mask reconstructive treatment - 6.76 oz. use protective gloves with the darker shades. apply evenly into washed, towel-dried hair, comb through and leave in for 5–10 minutes. rinse thoroughly.