Only your hairdresser can give your rebellious hair the right amount of nourishment and Pro-Keratin, to help discipline your hair for 4 days*. Enriched with Pro-Keratin and Kukui & Evening Primrose Oil, the Liss Unlimited shampoo purifies the hair, keeps it under control and feeling incredible to touch. For a glossy, frizz-free looking hair result for up to 4 days even with a 80% level of humidity*. Pro-Keratin improves and maintains hydration of the hair, strengthens its structure and leaves it soft and shiny. Kukui nut oil provides a reinforced protection against humidity - acting as a humidity blocker. From Asia, the Kukui nut is pressed from the seeds of the Aleurites Moluccana Tree, which oil contains Omega-6 and Omega-3, two essential fatty acids which cannot be produced by the human body. Kukui nut oil therefor provides a reinforced protection against humidity - acting as a humidity blocker. Optimum and long-lasting results with continued use of the full Liss Unlimited routine to smooth your hair. *Instrumental test n°1: shampoo + masque + thermo-smoothing cream vs. regular shampoo. Instrumental test n°2: double serum.