The basics PPI Necessary Evil Mouth FX is a temporary mouth and tooth FX makeup designed to color the inside of the mouth and teeth safely and effectively.  The benefits Made entirely of FDA food grade ingredients, has a sweet vanilla-mint flavor, and is vegan, gluten-free, peanut-free, sugar-free and cruelty-free.  The colors Pitch Black - is great for blacking out mouths and adding very dramatic dark pigment. Down Brown - is a very grotesque shade of brown, ideal for zombies, pirates, or any character down on their luck. Feeling Blue - is ideal for aliens, mutants, and frozen effects. Can be combined with Blood Red to make a disturbing purple color, or Yuck Yellow to create a nasty Green. Blood Red - is ideal for blood effects in and near the mouth. Yuck Yellow - is a gruesome yellow with a touch of brown. It can be thinned down to create realistic discoloration of the teeth and gums or used in concentration to create a very bold diseased look. The bottom line The 5 colors are sold individually or as a set (Includes carrying case and carabiner clip). Colors can be combined to create other shades and colors.