Encourage lustrous-looking locks with the Redken Acidic Bonding Concentrate Shampoo Refill Pouch. The sumptuous shampoo works to lessen the look of colour fading, while minimising the appearance of damage and split ends. Infused with citric acid, acidic pH and a Bonding Care Complex, the high-performance formula helps to protect weakened bonds in the hair, while visibly balancing the pH of your tresses. Hair feels silky smooth and nourished, adorned with the illusion of improved shine and gloss.