Is this shampoo suitable for natural shades of blonde and silver, as well as single process color or

Yes! ColorKick®️ De-Brassing Shampoo was formulated for the full range of natural shades, including blonde and silver, as well as color-treated and highlighted hair shades. It was originally tested on natural blonde and highlighted hair, as well as natural silver hair, because on a spectrum of brassiness, these are the most prone to yellowing. Then testing was broadened for the full range of natural, color-treated, and highlighted shades.