CELOX First Aid Temporary Traumatic Wound Treatment 2g is easy to use (just pour, pack and apply pressure), very safe and extremely effective. When mixed with blood, Celox forms a robust gel plug in 30 seconds. This clotting action is independent of the bodies normal clotting processes. Celox’s clotting ability has been proven to work in the presence of common anti-coagulants. In tests on swine by the U.S. Navy in Jacksonville, Celox was the only product to give 100% survival.