Fox Labs’ Mean Green® formula contains a 3,000,000 Scoville Heat Unit (SHU) formula which is so purified, it is virtually clear before they add the dye. Not even their famous FIVE POINT THREE® formula is as pure. This has enabled FOX LABS to add green staining dye to the formula making it distinctive from all other formulas on the market. It not only maintains the legendary stopping power that all FOX LABS formulas are recognized for, but with the addition of the green staining color Mean Green® offers the additional benefit of a deterrent that makes assailant identification much easier.