Olaplex Hair Perfector No. 3 rebuilds hair from its core, locating broken protein bonds and repairing them using the same ingredients found in the salon treatment. It’s truly revolutionary hair rehab, available in the comfort of your home. Get salon-restored locks with the same active ingredients as the salon treatment Olaplex No.2 Bond Perfector product, but at a lower concentration. The No.3 product is formulated for weekly maintenance rather than all-at-once intensive treatment.