Paul Mitchell® Inkworks® is a semi-permanent, 100% vegan professional hair colour that can be used as a vibrant, pure tone on pre-lightened hair or to add an “aura” of colour on natural hair. All shades are intermixable for unlimited creativity. Inkworks® sits primarily on the outside of the hair shaft; the greater the porosity and the lighter the base colour the more intense the end result. Conditioning proteins, especially in an acid base, have an affinity for the hair fibre helping to make Inkworks® an outstanding shiny temporary colour. Choose from Hot Pink, Red, Purple, Blue and White (for clear results or dilution).