Eternal Cool Dark Gray Tattoo Ink is the darkest of a three-step opaque gray set with a cool blue tint.

The M Series, designed by Mike Devries and Mario Rosenau, is formulated for portrait work, realism, and monochromatic tattoos. The series features an assortment of portrait tones that were designed to complement each other. Mixing them on the fly will get you amazing results for your skin tones as well for other elements in your work.