Defense Pepper Sprays are simple inexpensive self defense non lethal weapons that are extremely effective for personal safety and protection. You can completely disable an attacker without causing permanent harm. Pepper sprays' main ingredient is the oil from hot peppers, called oleoresin capsicum, or OC, which temporarily blinds and incapacitates attackers. The OC causes blindness, tearing, running nose, coughing and burning of the skin that can last up to an hour after application. Hikers use defense pepper spray to protect themselves against animal attacks, and delivery people often carry it to deter aggressive dogs.