Protective and restructuring spray to be used before the wave/straightening service. Split End Complex creates a protective film that restores the hair’s Keratin structure. Wave or straight service can act even on processed or treated hair. Preonda is the suitable product for treated and stressed hair. It firms split ends of brittle hair and increases smoothness and combing. USAGE: Spray Preonda on lengths and tips of washed hair. Proceed with waving or straightening technical service.