Royal Bee guarantees immediate straightening thanks to the presence of Melitina, a natural protein that not only smooths the hair, but also deeply hydrates it. Average duration of treatment: 3 months. Benefits: Restores the natural balance of the hair and reduces frizz. It guarantees the regeneration of the hair fiber and the general reinforcement of the hair. Deeply hydrates and brightens. How to use: Divide the hair into strands and straighten it 10 or 15 times. The thinner the hair partitions, the better the end result. The plate of the iron must be passed more at the roots and less at the ends. On dyed, bleached and chemically treated hair, let the product act for at least 40 minutes. The iron must be at 180C °. On natural hair, leave to act for at least 60 minutes. The iron can be up to 190C ° - 200C °.