The basics Ben Nye Dark Blood is pre-oxidized for an older, unfresh appearance. The benefits Corn-syrup based with a fresh peppermint flavor for safe and pleasant use in and around the mouth. Washes from most fabrics and surfaces, though spot testing is suggested before use. The uses With vivid, realistic coloring and a medium flowing viscosity, Ben Nye's Dark Blood is best-suited for zombies or those who aren't quite dead yet! The bottom line Countless feature films have used Ben Nye’s Dark Blood exclusively!