Shimmer Lights (currently $16.46 for an 16-ounce bottle on Amazon) is a purple shampoo that uses violet dye to neutralize yellow, brassy color. I have not yet found a product like this that works so effectively on my platinum hair. Anti-Frizz And Shiny. ... Shampoos like purple shampoo work on your hair from within. It’s a shampoo that enhances and removes any unwanted color in the blonde or silver, which is exactly what most people are looking for when they search for the best purple shampoo. Buy on Amazon. It is a harsh truth that gray hair is dry and frizzy. It lacks shine due to brassiness. 9 – Clairol Professional Shimmer Lights Shampoo for Blonde Hair. Purple shampoo …