The L'Oréal Professionnel Liss Unlimited Shampoo provides nourishment and Pro-Keratin for smoothing and controlling rebellious hair. For glossy, frizz-free hair for up to 4 days*.Enriched with Pro-Keratin and Kukui & Evening Primrose Oil, the Liss Unlimited shampoo purifies the hair, keeping it under control and feeling incredible to touch. 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 + mask + thermo-smoothing cream vs. regular shampoo. Instrumental test n°2: double serum. At L’Oréal Professionnel, we are striving towards an ever more responsible and sustainable business model, transforming our activities to respect the planet’s limits. 100% recycled plastics are now prioritised in the manufacturing of our Serie Expert bottles, reducing the use of virgin plastics. The Serie Expert collection is produced in a facility that has been carbon-neutral since 2015, and has implemented a water recycling loop that has reduced water usage by 47% since 2005.