Want to keep blonde, grey or silver hair looking cool and bright? Matrix So Silver Purple Shampoo helps neutralize unwanted yellow tones while enhancing brightness and shine. Its cleansing formula refreshes the hair and helps maintain a cooler-looking tone between salon visits. Helps neutralize yellow undertones Enhances blonde, grey and silver hair Gently cleanses without weighing hair down Helps maintain cooler-looking tones Leaves hair soft and shiny HOW TO USE Apply to wet hair and massage into a lather. Leave on according to the desired level of toning, then rinse thoroughly. Follow with So Silver Conditioner for best results.