The Nº.3 Hair Perfector®, infused with patented OLAPLEX Bond Building technology, is a pre-shampoo treatment that is proven to repair and strengthen hair from the inside out. Use the Nº.3 Hair Perfector® alone or paired with OLAPLEX Nº.0 for maximum at-home repair. OLAPLEX Nº.7 Bonding Oil™ boosts shine, softness, and color vibrancy. It repairs, strengthens hair, and reduces breakage and restores healthier-looking hair. OLAPLEX Nº.7 Bonding Oil™ delivers heat protection up to 450°F/232°C