OLAPLEX single-use system for bond building. Includes No.1 Bond Multiplier and No.2 Bond Perfector. Scientifically proven results. Olaplex No1 and No2 Single Use Brand new Olaplex No.1 Bond Multiplier: This is the first step, which rebuilds broken bonds in the hair caused by chemical, thermal, or mechanical damage. Olaplex No.2 Bond Perfector: This continues the repair process, ensuring full nourishment and restoration of hair strength and shine. This system is ideal for use during or after chemical treatments like coloring or bleaching, but it can also be used as a standalone treatment for damaged hair.