Olaplex N°8 Bond Intense Moisture Mask 100ml provides residual benefits that last multiple shampoos. Built for speed, you can feel the difference as N°.8 starts to work as the hair becomes smooth & slick. The Airless pump makes it good to the last drop! Infused with patented OLAPLEX Bond Building Technology, highly concentrated reparative hair mask adds shine & body with intense moisture to treat damaged hair. It’s weightless texture fully absorbs into the hair. How To Use Apply to freshly shampooed, damp hair from mid lengths to ends, working product through with your fingers. Start with 2 pumps for shoulder-length hair; use less or more depending on length and thickness. Leave on for 10 minutes then rinse fully.