Olaplex NO.5 Bond Maintenance Conditioner is a patented, unique and different conditioner that leaves your hair with the softest feel. It is packed with moisturizing ingredients so that all hair types achieve the perfect moisture level that makes the hair feel healthy and strong. NO.5 contains Olaplex’s own molecule that re-links the sulfur bridges in the hair, which are broken down daily by e.g. hairdressing, sunlight and rubbing the hair against the pillow at night. It is extremely expensive to use and just a small amount is enough to make your hair feel like the finest silk. Use NO.4 and NO.5 as your daily care and supplement with NO.3 once a week, to re-link the maximum number of sulfur bridges. Your hair will be enriched with moisture, nourishment and the exclusive Olaplex molecule, making it appear healthier, stronger and shinier than ever before. Your hair will thank you!