Ben Nye Mass Casualty Simulated Blood Powder is a highly concentrated blood colored powder that is great for making alot of fake blood at an affordable price. Perfect for stage and emergency training simulations. One 3 oz. jar can make up to a full gallon of blood. Brush on skin and spritz with water to create scraping fx.  Mix with water for thin blood or corn syrup for a thicker blood.  Like most fake blood, it will stain clothes.