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.