What It Is Color Depositing Purple Shampoo for Blondes What It Does Featuring Salicylic Acid, this toning purple shampoo removes brassy yellow tones from color or highlighting services. Helps tone blonde hair to be cool and bright and strengthen hair. What Else You Need to Know Color Extend Blondage features a color-depositing purple shampoo, conditioner, and mask which help to tone and strengthen blonde hair for long-lasting beautiful haircolor.