Forming the key steps of a comprehensive haircare routine, the Redken Acidic Bonding Concentrate Intensive Pre-Treat Bundle is host to three bestselling formulas designed to nurture weakened strands. Set Contents: Acidic Bonding Concentrate Intensive Pre-Treatment 150ml The first step in Redken's Acidic Bonding Concentrate routine, the 5-minute, rinse-off, pre-shampoo treatment is formulated to visibly smooth the hair cuticle, promote stronger-looking hair and lock in your colour for longer. Acidic Bonding Concentrate Shampoo 300ml Fortified with citric acid and the brand’s exclusive Bond Care Complex, the shampoo protects weakened strands while reducing the look of split ends. Acidic Bonding Concentrate Conditioner 300ml Complete your routine with the ultra-hydrating conditioner designed to lightly envelop damaged strands in a nourishing veil.