The Goldwell dualsenses silver shampoo gives hair a uniform, cool hue with intense colour luminosity while neutralizing unsightly yellows. Thanks to the unique luminescine technology, which produces visible colour reflections from invisible uv rays, the Goldwell dualsenses silver shampoo brings radiance to your hair. The neutralizing shampoo is suitable for both gray hair and cool blondes and can be applied to coloured and untreated hair