Schwarzkopf BC Bonacure Silver Micellar Shampoo pH 4.5 Color Freeze 8.5 Ounce 250 Milliliters This is for porous and color-treated, highlighted or over-processed hair. Use this for hair showing unwanted yellow tone direction or is white and needs subtle silver tone direction. Gently yet effectively cleanses hair and scalp. Strengthens the hair structure. Helps to optimise the pH level to 4.5. Neutralises unwanted warm undertones. Preserves and revives cool tone directions. Adds a cendre shimmer to white hair and very light bases. Apricot Oil protects and smoothes the hair surface and Provides extra shine.