Loreal paris colorista washout is a semi permanent colour cushioned in a hair mask baseit fades gradually over 1 2 weeks so you can switch and change your hair colour whenever you wantbased on chroma cream technology in a conditioning hair mask base it softly colours your hair while caring at the same timeit washes out gradually shampoo after shampooplease note pastel shades for blonde or prelightened hairvivid shades for all hair types however may last longer on blonde or prelighte