Key ring/belt clip UV marking dye Release safety trigger Know that you are able to protect yourself in a dangerous situation with the KeyGuard Pepper Spray. This pepper spray formula is 10% OC pepper and includes an invisible UV dye that helps authorities identify attackers who have been sprayed. The key ring and belt clip make it easy to keep the spray with you, while the molded hard case and easy release safety trigger alleviate the worry of accidental releases.