Schwarzkopf BC Bonacure Color Freeze Silver Treatment - pigmented mask for cool colours. A restorative pigmented treatment from Bonacure Color Freeze, especially formulated for grey and bleached hair. Free of silicones or artificial colouring agents, the hair is intensively nourished while warm undertones are neutralised. The hair is rebalanced to optimal pH level to perfectly freeze the colour pigments within the hair matrix, preventing fading for long-lasting hair colour.