What is Pepper Spray? (IMAGE) American Chemical Society Caption Whether it's walking down a dark street at night or fighting off grizzly bears on the trail, pepper spray is an effective tool to fend off an attacker and get safely away. This week on Reactions, we're taking a look at what's in these little canisters and why it inflicts so much pain. And for those times when you accidentally spray yourself, we'll also give you some tips on what to do: https://youtu.be/QFPxj4CcXp0. Credit The American Chemical Society Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.