Nº4 Bond Repair Shampoo | Restores Broken Hair Bonds | Argan Oil + Protein Formula for Damaged, Color-Treated & Bleached Hair | Sulfate-Free Salon Results 15.06fl.oz/450ml

Revive your hair with KOOPLEX Nº4 Bond Restoring Shampoo — a next-generation, salon-grade cleanser that repairs, strengthens, and protects your hair from within. Developed with advanced bond-repair technology, this formula penetrates deep into the hair fiber to rebuild broken bonds caused by coloring, bleaching, or heat damage. Each wash helps restore elasticity, smoothness, and shine, leaving hair visibly healthier and more resilient. Unlike ordinary shampoos, KOOPLEX Nº4 is sulfate-free, color-safe, and pH-balanced, ensuring a gentle cleansing experience that maintains your hair’s natural moisture barrier. It effectively removes impurities without stripping oils, keeping your hair hydrated, frizz-free, and full of life. Enriched with Argan Oil, Hydrolyzed Wheat Protein, and Coconut Extracts, this unique complex delivers deep nourishment and protection, fortifying every strand from root to tip while promoting softness and radiant shine. Why Professionals Love It: Advanced Bond Repair: Targets structural damage to reinforce and strengthen the internal hair fiber. Color & Shine Protection: Helps preserve color vibrancy, reduce split ends, and smooth the hair cuticle for a glossy finish. Salon Results at Home: Achieve professional-quality results after every wash — softness, shine, and manageability from the first use. Clean Beauty Formula: Sulfate-free, paraben-free, cruelty-free, and vegan-friendly. More Value per Wash: Available in 120 ml for daily use and 450 ml professional size for extended care at a smarter price per ml. Perfect for all hair types — straight, wavy, curly, or textured — and highly recommended for color-treated, bleached, or chemically processed hair. KOOPLEX Nº4 transforms your daily routine into a luxurious repair ritual, bringing salon-level care into your hands.

• Advanced Bond-Repair Technology – Targets broken hair bonds from coloring, bleaching and heat styling to help rebuild internal structure, improve resilience and reduce future breakage. Ideal for damaged, over-processed hair.
• Argan Oil + Protein Complex for Strength & Elasticity – A nutrient-dense blend with Argan Oil and Hydrolyzed Wheat Protein delivers deep nourishment, smoother cuticles, frizz control and a soft, healthy feel after every wash.
• Color-Safe, Sulfate-Free Cleansing – Gently removes impurities without stripping natural oils, helping preserve color vibrancy, reduce dryness and split ends, and maintain a glossy, salon-fresh finish. pH-balanced for daily use.
• Salon Results at Home for All Hair Types – Visible repair, shine and manageability on straight, wavy, curly and coily hair. Works beautifully for chemically treated, bleached or heat-styled hair as part of a weekly or daily routine.
• Clean Beauty, Professional Size Value – Sulfate-free, paraben-free, vegan & cruelty-free formula with a pleasant fresh scent. 450 ml / 15.2 fl oz professional size offers generous usage and a smart price per ml.