A Multi-Benefit, Reparative Hair Mask This highly concentrated reparative mask, infused with patented OLAPLEX Bond Building technology, adds shine, smoothness, and body while providing intense moisture to treat damaged hair. You can skip the styling if your hair is visibly healthy. How to use: Apply to clean, damp hair and work through with fingers. Start with 2 pumps for shoulder-length hair. Use more for longer, thicker hair. Less for fine or short hair. Leave on for 10 minutes. Rinse fully and style as usual. Use weekly for best results.