PHYTO's thermoprotective spray, REPAIR, is designed to shield hair fibers from heat damage at temperatures reaching 230°C. Following application, the hair's temperature decreases by 8.6%, offering effective thermoprotection. Results show that 87%** of users found their hair more attractive, 83%** reported increased nourishment, and 83%** felt their hair was safeguarded against dryness. *An instrumental thermal assessment was conducted on both treated and untreated strands. **% satisfaction based on a study involving 22 participants over a period of 21 days.