The color revitalizing shampoo perfectly neutralizes the unwanted yellowish shade of blonde hair after bleaching or coloring and allows you to remove product residues after these treatments. How does Joanna Professional Anti-Yellow Boost Complex Shampoo work? gives the hair a cool, gray shade, neutralizes unwanted yellowish reflexes. The cosmetic provides a cold, gray reflex, the intensity of which increases after several uses. The formula of the cosmetic product is enriched with microproteins and provitamin B5 that nourish the hair fibers. After use, the hair acquires a beautiful shine, remains light and pleasant to the touch.