OLAPLEX No. 7 Bonding Oil is the first-of-its-kind, highly concentrated, ultra-lightweight, reparative styling oil. NO.7 dramatically increases shine, softness and strength. Like all OLAPLEX product it enhances all hair types and textures. When used with any thermal styling appliance N°.7 provides heat protection up to 450°F/230°C. Made without sulfates, phthalates, parabens, or gluten. Vegan. Color-Safe.