Clairol Shimmer Lights Shampoo is a popular product primarily designed for those with blonde or silver hair. It's known for its purple/violet tint, which helps neutralize yellow tones in blonde, gray, and white hair, leaving it looking brighter and more vibrant. This shampoo is often used to maintain and enhance the color of blonde or silver hair, as well as to combat brassiness caused by factors like sunlight or water minerals.