Osmo Silverising Shampoo effectively improves the colour of blonde and grey hair while also making it feel soft and healthy. The Osmo Silverising shampoo cleans the scalp effectively, washes hair thoroughly, and restores its natural beauty. It washes hair and cleans the scalp, neutralises yellow undertones in your hair and prolongs hair colour. How to use: Apply an appropriate amount of shampoo to wet hair. Work up a lather and rinse thoroughly.