The Joico Extra Strong Mask For Restoring Hair Bonds Defy Damage Kbond20 Power Mask is engineered to intensely repair and strengthen hair bonds from within. This powerful treatment is designed to mitigate damage caused by chemical processing, heat styling, and environmental stressors, restoring resilience and vitality to compromised hair. Ideal for weekly use, this mask integrates deep conditioning agents with bond-rebuilding technology to significantly improve hair texture and manageability, leaving hair remarkably softer and smoother after application.