Tressa Colourage Individual Wave: One formula that ensures predictable results on all color treated hair and minimizes color lifting. Colourage.. where color and curl harmonize. Acid pH 7| Hair Profile Healthy High Lift Highlighted (up to 80%) Fragile Normal Fragile Colored Features Benefits Process at room temperature Stop action to prevent over processing Minimizes color lifting Expectations Uniform, even curl on color treated hair regardless of condition of hair Leaves hair in incredible condition