Shampoos with violet pigments are designed to neutralize unwanted yellow tones in lightened or naturally blonde, gray, and white hair. These products work by depositing small amounts of purple pigment onto the hair shaft, counteracting the yellow, which helps maintain a brighter, cooler appearance. An example of this effect is the reduction of brassiness in chemically treated hair.
Maintaining desired ashy or silver tones can be challenging due to factors like mineral deposits from water, environmental pollutants, and the gradual fading of color treatments. Violet-toning shampoos offer a convenient and cost-effective solution for at-home color maintenance, helping to extend the life of professional salon services. This approach to color correction has become increasingly popular as consumers seek convenient ways to maintain vibrant hair color.