Now get double the strength for fighting brassiness and fading with the Osmo No Yellow Duo shampoo and mask set. Containing extreme super-violet pigments, this sulphate free mixture is specifically formulated to target unwanted yellows in lightened, greying and bleached hair. Perfect for both natural and synthetic hair, the results leave blonde shades more balanced than before as radiant silver and ashy tones replace dull and tired brassiness. Key benefits: ul.kit li {list-style-type: disc; margin-left: 15px;} Contains Osmo Super Silver No Yellow Shampoo 1000ml & Osmo Super Silver No Yellow Hair Mask 1000ml Contain extreme super-violet pigments Replaces unwanted yellow tones with silver and ashy shades Sulphate free formula Works on natural and synthetic hair