Ben Nye FX Stack offers the most useful selection of effects-specific shades. Replace or add shades as needed to build custom stacks. These shades produce life-like, "in the skin" effects for black eyes, bruises, abrasions, burns, and character details. F/X Colors are acutely designed, boldly pigmented and micro-blended in a silky, buildable texture. For a "wash effect," brush a few drops of alcohol onto painted colors. Set with Neutral Set Colorless powder. Spray with a setting spray to resist perspiration.