OLAPLEX No. 3, No. 6 and No. 7 Trio works to restore hair health. This set combines a pre-shampoo bonding treatment with a leave-in styling cream and a multi-benefit hair oil. The No. 3 Hair Perfector repairs and strengthens all hair types while No. 6 Bond Smoother reduces frizz, nourishes, and protects. Lastly, the No. 7 Bonding Oil provides shine, softness, and manageability.