Lose the brassy yellow and embrace silver and ash tones. The Osmo Super Silver Duo Pack is a brilliant product for use on super-lightened, grey or bleached hair. It's been specially developed to reduce unwanted yellow tones and change the hair colour to silver/ash tones instead. It's perfect for use on natural and synthetic hair types and has been formulated with extreme, super-violet pigments to combat any unwanted brassy tones. Simply apply to wet hair, lather and leave for 3 to 5 minutes to begin restoring colour vibrancy to your clients' hair.