Redken Extreme Length Strengthening Shampoo 300ml is a targeted solution for those looking to achieve longer, stronger hair. Designed for all hair types, this shampoo is enriched with biotin—a key ingredient known to support healthy hair growth by strengthening each strand from root to tip. As part of Redken’s complete Extreme Length system, this shampoo helps to reduce breakage and fortify damaged hair, making it more resilient over time. With consistent use, hair becomes up to 5x stronger, creating the perfect foundation for maximum hair length and long-term health. A length strengthening shampoo with biotin that fortifies hair from root to tip Strengthens hair strands for 5x stronger hair Helps reduce breakage and damage to support longer hair Suitable for all hair types and textures Works best when used with the full Extreme Length system How To Use: Use as a complete system with Extreme Length Conditioner and Leave-In Treatment Apply to wet hair, massage into lather, and rinse thoroughly Follow with Extreme Length Conditioner and Leave-In Treatment In case of contact with eyes, rinse them immediately Compact and convenient, the 300ml size is perfect for clients who want to maintain a professional hair-strengthening routine at home.