post-color shampoo milk_shake color specifics color sealing shampoo cleanses and seals color pigments inside hair after coloring for longer-lasting shiny color. Based on Nano Bio Genius technology. A surface-active agent provides very gentle hair cleansing. Milk protein has a strong integrative and conditioning action inside the hair's cortex, while glycerin helps to keep hair moisturized. milk_shake color specifics color sealing shampoo has a pH balance of 4-4.5.