Violet pigments counteract harsh yellow and orange tones, restoring color to its intended appearance. ArganID technology helps infuse argan oil into hair’s cortex, helping to repair and seal the cuticle. I switched over to this shampoo after using the Not your mothers purple shampoo. 92% of consumers reported this shampoo tones down brassiness (in an independent study on consumers … Love the smell of this shampoo as well! The Moroccan oil shampoo does a really nice job eliminating the brassiness without dulling your hair. Moroccanoil Blonde Perfecting Purple Shampoo combats brassiness in blonde, lightened, or grey hair. I have oily hair and this does not make it more oily or leave it feeling dry.