Stock up and save on your favourite Redken shampoo with this great-value double set. Contents 2 x Redken Extreme Length Shampoo 300ml Enriched with bioten, Redken's Extreme Length Shampoo gently cleanses and fortifies damaged hair, and helps it grow longer and stronger. Expertly formulated, this advanced shampoo also protects lengths and prevents breakage. Use the full Redken Extreme Length System, including Shampoo, Conditioner and Length Sealer Leave-in Treatment to achieve even better results and reduce breakage by 81%.