Say goodbye to yellow hair! HH Simonsen Anti-Yellow Shampoo is a protective and caring shampoo for anyone who has dyed blonde or grey/ash blonde hair but is bothered by unwanted yellow tones in the hair. A perfect harmony of blue, violet and green pigments effectively eliminates yellow shades without stressing the hair, while the shampoo also protects the hair's "real" color against the sun's UV rays. Thus, the quality of the hair is not destroyed.