The Olaplex No. 5 Bond Maintenance Conditioner is an intensive, reparative conditioner designed to hydrate and strengthen all hair types, especially those that are color-treated or damaged. It works to restore, repair, and rehydrate hair by relinking broken disulfide bonds. This conditioner leaves hair looking and feeling healthier, smoother, and shinier. It is safe for all hair types and is formulated without harsh sulfates, parabens, or phthalates.