Hydra extend mask maintenance keratin 2 - hydration this paraben-free, dye-free maintenance mask is essential to prolong the benefits of deep rebuilding it preserves keratin in the heart of the hair and permanently maintains the integrity of the fiber a true moisture regulator, it guarantees a soft and radiant material provides optimum hydration retains water in the core of the fiber capacity : 200 ml procedure : 1 after shampooing, apply to towel-dried hair, spreading over the lengths and ends 2 gently massage allow 5 to 10 minutes depending on the porosity of the hair 3 rinse thoroughly.