Bond Therapy ConditionerConditioner ideal for medium to coarse overprocessed, damaged hair Biolage Bond Therapy Conditioner for overprocessed, damaged hair smooths, nourishes and builds bonds from the inside out. Benefits Conditioner for overprocessed, damaged hair that smooths, nourishes and builds bonds from the inside out. After just one use and when used as a system, hair has: less breakage and is stronger, softer, and intensely conditioned without feeling weighed down.