Rich Hydration Mask Medium to Thick/Dry Hair - 12.5 oz

Step into a new era of hair health with the Olaplex 4-in-1 Bond Moisture Mask, the professional-strength, ultra-concentrated treatment designed specifically to rescue and revitalize the thirstiest medium, thick, and dry hair textures. This mask is a master of multitasking, delivering four critical benefits in a single 10-minute treatment: intense moisture, brilliant shine, added body, and superior smoothness. Unlike traditional deep conditioners that merely coat the hair surface, this formula penetrates deeply to address the root cause of damage and dehydration, instantly transforming brittle, lifeless strands into a resilient, manageable mane. It’s the essential weekly ritual that provides the luxurious results of a salon treatment right in your own shower.

The profound effectiveness of this mask lies in its marriage of concentrated moisture and patented reparative science. At its core is the original Olaplex Bond-Building Technology (Bis-Aminopropyl Diglycol Dimaleate), which actively seeks out and reconnects the damaged disulfide bonds in the hair structure, repairing chemical, thermal, and mechanical harm from the inside out. This is supercharged with elevated levels of Ceramides, luxurious conditioning oils (like Avocado and Meadowfoam Seed), and 11 vital Amino Acids. This unique fusion of bond-repair and deep lipid infusion not only locks in intense hydration but also seals the hair cuticle, ensuring the beneficial ingredients are retained for long-lasting health and shine.

The clinical results from this rich formula speak for themselves, promising a tangible transformation that lasts for multiple washes. Users report that the mask provides 16X instant hydration, a 71% reduction in breakage, and delivers 74% all-day frizz reduction—even in high humidity—providing unprecedented defense against environmental stress. The highly concentrated 12.5 oz size is a long-term investment in your hair's vitality, capable of delivering up to 140 professional-level applications. Commit to this weekly treatment and experience hair that feels stronger, dramatically softer, more elastic, and beautifully reflective, all while maintaining a surprising, healthy-looking body that heavier masks often fail to achieve.

Combines Deep Hydration with Patented Bond Repair Technology: This mask is intensely concentrated with the proprietary Bis-Aminopropyl Diglycol Dimaleate, the single active ingredient that reconnects broken hair bonds while simultaneously delivering elevated levels of Ceramides and vital amino acids. It ensures your hair is not just conditioned, but structurally repaired and strengthened from the core, making it the ultimate solution for severely damaged or chemically treated hair.

Clinically Proven for Long-Lasting Moisture and Breakage Protection: The formula is clinically demonstrated to deliver 16X instant hydration and maintain 6X hydration even after five washes, while also providing a 71% instant reduction in breakage. This means your hair stays protected, elastic, and hydrated long after you rinse, drastically reducing brittleness and split ends.

Achieves 74% All-Day Frizz Control and 119% More Shine: Formulated with a luxurious complex of conditioning oils, including Avocado and Shea, this mask seals the hair cuticle to lock out humidity and smooth the hair fiber for a sleek, reflective finish. You'll enjoy remarkably high-slip softness, mirror-like shine, and superior frizz resistance that holds up throughout your busy day.

Weightless Yet Rich for Enhanced Body and Volume: Despite its deeply moisturizing capabilities, the 4-in-1 formula is engineered to not weigh hair down, actively improving hair porosity and density to add visible body and bounce, which is a rare feat for a mask this intensely nourishing. It provides the perfect balance of moisture and volume, transforming limp, dry hair into a fuller, more energetic texture.

Professional-Grade, High-Concentration 12.5 oz Size: This large 12.5 oz size is ultra-concentrated, offering exceptional value and efficacy, and is capable of up to 140 powerful treatments in a single bottle. It is free from harsh ingredients like sulfates, parabens, phthalates, and is proudly vegan, cruelty-free, and pH balanced for the safest, healthiest results for all hair types.