Wheatgrass extract is a highly effective hemostatic agent - it stops bleeding from open wounds, deep-seated bleeding in muscles, and even a "blood nose", where two or three drops of wheatgrass extract applied inside or over the bleeding nostril with a cotton bud/Q-tip, is sufficient, then apply pressure to the nose, pinch the nose with finger and thumb and breathe through the mouth. Bleeding should stop in about five minutes. If not, seek medical assistance.