Nourished Hair Means Better Blonde Refresh your blonde hair each time you use our nourishing anti-brass treatment infused with avocado, olive, shea oils, +CoolTone Technology. Nourished Hair means better blonde with Nutrisse Ultra Color Nourishing Anti-Brass Treatment to refresh, help tone down and neutralize brassiness for a color fix at home. Nutrisse Ultra Color Nourishing Anti-Brass Treatment is a purple conditioner formulated with triple oils - avocado, olive and shea CoolTone Technology to take your blonde to the next level each time you condition.