Matrix Total Results Color Obsessed So Silver Shampoo for Blonde Hair, Shampoo to Rid Yellow Tone in Blonde Hair. Revitalisation for grey, blonde, silver and all lighter tones... The results are stunning with Matrix So Silver Color Obsessed Shampoo 300ml. So Silver Color Obsessed Shampoo neutralises brassy warmth and corrects dull yellow tones on blonde, silver and grey hair types. Matrix Total Results Color Obsessed So Silver has an illuminating effect and results in a shimmering, radiant glow for your lighter-coloured hair. Make your hair all that can be!