Packable sizes of Nº.1 Bond Multiplier™ and Nº.2 Bond Perfector®–the first-of-its-kind, 2-step, professional-only bond-building treatment that made damage repair and prevention possible in any salon service. The highest concentration of patented OLAPLEX Bond Technology™ works on a molecular level to mitigate hair damage by repairing all 3 hair bonds– including disulfide bonds–caused by chemical, thermal, and mechanical damage. Add to any chemical service or use on its own. Brand new in box, still sealed.