OSMO SUPER SILVER NO YELLOW SHAMPOO 300ML Lose the brassy yellow and embrace silver and ash tones. Osmo Super Silver No Yellow Shampoo 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.