Ben Nye Gelatin Blood Capsules are perfect for real-time scenes where blood needs to actively flow.
Stage Blood sold separately.
To use: open capsule, and fill one half full with blood. Close capsule, and can place in mouth and bite down to release blood or puncture in wound act.
Capsules hold their shape even if not used for several days. Best to fill with Ben Nye Stage Blood, which is safe for human consumption.