WHAT IT IS Bonacue Fibre Force Conditioner detangles extremely damaged hair and restores it from within. WHAT IT DOES Schwarzkopf Professional BC Bonacure Fibre Force Conditioner deeply penetrates the hair to restore it from within. For regeneration of weakened hair with new force and resilience. Leaves hair soft without weighing it down. Within 4-10 weeks depending on the hair quality Fibre Force strengthens the hair and restores original hair quality.