OSMO's Silverising Violet Mask mends colour treated hair by eliminating yellow tones and resorting colour vibrancy. This Sulphate free conditioning mask shields hair against sun damage and features an anti-fade system to improve colour radiance. Perfect for adding shine to grey or white hair. Apply mask evenly through partially dried hair, leaving for 3-5 minutes. For a more intense treatment on damaged hair leave for 7-10 minutes. Features Protects against UV rays and eliminates yellow tones Restores coloured hair by eliminating yellow tones Improves colour vibrancy Perfect for adding shine to grey or white hair