TECHNICA SILVER SHAMPOO - NEUTRALISING ANTI-YELLOW, 1000 ml TECHNICA is a line specifically designed for dyed / coloured hair Recommended after any Vitality’s dye has been used. Neutralises yellow tinges in grey or white hair. Ideal after bleaching to soften the hair fibre and revive its brightness. It is enriched with soya proteins that restructure the hair and repair the hair fibre. Hair looks silky, brilliant and soft.