4Bond ProExtend Service Extender 4oz 4Bond PROEXTEND Salon Service Extender is the most exciting and advanced professional product for extending the life of salon services. Smart Target Technology, a first of its kind, infuses a Proprietary Blend of Polymers, Keratin, Quinoa, and Baobab Proteins rich in Amino Acids into the hair's cortex. 4bond PROEXTEND has been specifically engineered to seal the hair cuticle and repair split ends that have incurred damage through chemical services such as: color, lightener, smoothing, straightening and thermal styling. 4bond PROEXTEND provides enhanced shine while conditioning, fortifying and maintaining salon services. SALON SERVICE EXTENDER PROEXTEND CONDITION * FORTIFY * MAINTAIN ...