OLAPLEX Rich Hydration Mask deeply moisturizes and revives dry hair. Designed for medium to thick hair, the mask locks in intense hydration while controlling frizz. Its patented technology helps to improve hair's elasticity and smoothness. Shea butter and avocado oil drench strands in long-lasting hydration without weighing them down. The result is visibly healthier, glossy, and more manageable hair after every use.