Essentials by Matrix So Silver Shampoo Liter To Use: Wear suitable gloves, apply to wet hair, lather and rinse well. Repeat if necessary. For Maximum results, leaves second lather on 3-5 minutes. Pictures are for display only. New name- Matrix Essentials Solutionist So Silver Shampoo. Eliminates dulling yellow tones and adds shimmering brightness to gray and white hair. Neutralizes unwanted brassy tones and enhances natural highlights on blonde, frosted or bleached hair.