Prolongs the in salon protocol effects for 6 weeks after application for long lasting care for all types of damaged hair gone are the days of damaged hair treatments that do not last beyond the first shampoo thanks to the re charge aptyl 100 at home treatment aptyl 100 molecules that were sealed deep into the hair fiber during the in salon treatment are reactivated and recharged so that hair looks repaired for longer to use apply the monodosis on shampooed lengths and ends every 4 shampoos