Stops bleeding in seconds and forms a protective seal allowing nothing into or out of the wound. Safe and easy to use. Non-toxic. Hypoallergenic. Does not cauterize the skin. Not metabolized by the body and is not a drug. Pour WoundSeal® powder on bleeding wounds and apply pressure for 30 sec. Proven technology used by leading hospitals, pro sports teams, the U.S Military, EMS providers and in thousands of occupational workplaces.