No. 3 Hair Perfector No. 3 Hair Perfector A pre-shampoo hair treatment that reduces breakage and split ends for visibly stronger hair. Formulated with scientifically proven OLAPLEX Bond Building Technology to repair broken disulfide bonds caused by heat, chemical, and mechanical damage. The #1 Prestige Haircare Product.* A pre-shampoo hair treatment to repair damaged hair. Patented OLAPLEX Bond Building Technology is proven to rebuild weak and broken disulfide bonds for visibly healthier, stronger hair and reduce breakage and split ends. . Ideal for damaged and compromised hair. pH Balance: 3.5 - 5. Free of Parabens, Sulfates and Phthalates. 3.3 fl oz/ 100 ml. Apply generously to damp hair from scalp to ends until hair is thoroughly saturated.. Leave on for a minimum of 10 minutes (or longer if desired).. Rinse from hair. Shampoo and condition as usual.. Use once a week or 2-3 times a week for very damaged hair.. OLAPLEX products are thoroughly tested in accordance with industry standards in-house and by independent third-party laboratories for safety and efficacy. OLAP-WU1. 20140603. Meet OLAPLEX. They're based on the principle of doing everything others don't and are changing the world of hair. Founded in 2014 by beauty industry veterans Dean and Darcy Christal, OLAPLEX is a team of chemists, industry experts and innovators developing beauty products based on science. Through a grassroots approach, the brand quickly became a global sensation, paving the way for a completely new category of haircare called bond-building. OLAPLEX restores damaged and compromised hair by repairing from the inside out with their revolutionary, patented technology that protects and repairs hair from damage. Once all the bonds are intact and in alignment, you have healthy, beautiful, shiny, touchable hair.