Olaplex Rich Hydration Mask is an intensive moisturizing treatment created for dry, frizz-prone and medium-to-coarse hair. Its rich, buttery formula helps replenish lost moisture, strengthen vulnerable strands and leave hair noticeably softer, smoother and more manageable with enhanced shine. Biomimetic Cuticle Technology wraps around each strand to help seal the cuticle, retain hydration and protect against moisture loss and cuticle damage for up to five washes. An Avocado and Shea Conditioning Complex combines oils of varying molecular weights to deeply condition hair while providing the slip needed for easier detangling and a silky, touchable finish. The mask delivers immediate hydration while helping reduce breakage and control frizz throughout the day—even in humid conditions. In Olaplex testing on bleached hair tresses, the formula provided 16 times more hydration immediately and maintained six times more hydration after five washes. This product is Vegan, Color Safe, and Suitable for chemically treated hair. Free of SLS/SLES, parabens, phthalates, protein, phosphates, and MIC/MIT.