Olaplex No. 4 Bond Maintenance Shampoo for Damaged & Color Treated Hair 250ml 8.5 fl oz

Chemical processing, salon lightening, and intense thermal styling inevitably rupture the essential disulfide bonds that give hair its structural strength, resulting in extreme dehydration, frazzled split ends, and chronic hair breakage. Olaplex No. 4 Bond Maintenance Shampoo 250ml 8.5 fl oz provides a clinically proven, patented bond-rebuilding wash engineered to repair, strengthen, and nourish compromised hair shafts at the molecular level. Powered by patented Bis-Aminopropyl Diglycol Dimaleate chemistry, it seeks out single sulfur hydrogen bonds and cross-links them back together, dramatically reversing damage from chemical and mechanical services. This highly concentrated formula creates an indulgent, rich lather from just a coin-sized amount, lifting away scalp impurities and residues without depleting essential lipid reserves or fading cosmetic hair color. It delivers targeted moisture to eliminate frizz and flyaways, optimizing overall tensile strength and leaving all hair textures incredibly soft, resilient, luminous, and easy to manage.

• Patented Bond Building System: Infused with Olaplex's exclusive molecule to relink broken disulfide bonds, drastically improving structural strength, elasticity, and split end resistance.
• Concentrated Moisture & Color Retention: Guards salon vibrant shades against dulling, seals cuticles to banish static frizz, and restores manageable slip without heavy buildup.
• Efficient 250ml (8.5 fl oz) Format: Highly concentrated salon-grade packaging fitted with an airtight dispenser cap, providing months of high-yield performance with minimal usage per wash.
• Clean Salon Purity Standards: 100% vegan, cruelty-free, and formulated without sulfates, parabens, phthalates, phosphates, and gluten; pH-balanced and safe for all hair types and extensions.