Paul Mitchell DOUBLE Bond Rx Shampoo 250ml Paul Mitchell DOUBLE Bond Rx Shampoo 250ml Specifically designed for damaged and chemically treated hair, this Shampoo leaves fragile hair feeling stronger protecting and nourishing it, whilst the lightweight formula transforms into a creamy lather working from scalp to ends to gently cleanse the hair of impurities. Complete with an irresistible amber, sandalwood and vanilla orchid aroma.