Get ready to intensify your color with the Tressa Watercolors Intense Color Shampoo - Blue! Made to refresh, maintain and intensify your wildly intense hair color. Each application deposits more color leaving you in complete control of how vivid and intense you want the color. Colors great on pre-lightened hair and natural level 7 and higher. Effective and safe on all hair types. Can also be used to combat unwanted orange/red tones. *Recommend wearing gloves when applying.