ANTI-BRASS PURPLE Shampoo and Shine Treatment fights the yellow brassy undertones while it gently cleanses. Used 1 to 3 times a week on balayaged, highlighted, single or double processed medium, light to platinum blonde hair. Perfectly balances blonde hair without making hair color overly ashy or dull. Followed by our Shine Treatment to seal the cuticle and add incredible shine to your balanced hair color.