Cool Silver Shampoo by Reference of Sweden.
Developed specifically to tone lightened and/or sun-bleached hair, REF. Cool Silver Shampoo carries blue and violets pigments which neutralise unwanted warm tones caused by mineral exposure or oxidation. Recommended for those with blonde, white and bleached hair types, Cool Silver Shampoo protects against colour fading and ensures that your hair is kept in perfect condition, thanks to the added benefit of linseed oil.