Provoke touch of silver twice a week brightening shampoo is a professional quality shampoo formulated to enhance the colour and condition of grey light blonde or white hair it contains violet colour pigments that will counteract any tendency to yellowing fading or dullness and active ingredients to make coarse hair feel supple again the result is beautifully bright hair glistening with health and radiance this is a toning shampoo to avoid colour build up use touch of silvers daily main