Schwarzkopf Bond Sealer Intense Treatment to be used after all lightening services with Fibrebond Technology. Deeply caring treatment in complete all Igora color and lightening series while helping to create new bonds within the hair fibers. It provides deep nourishment for strong and supple hair. -After shade process, shampoo and rinse hair. -Apply Bond Sealer for 5 to 10 minutes. -Rinse thoroughly and style hair.