My healthfood store has something called "cool Cayenne" and it's put out by the company that has the white bottles with the green tops - solaris - or something like that. I asked the health food store guy about the difference, but since I elected to go with the regular "non cool," I have apparently jettisoned the information from my limited-storage space head.
I DO remember that my decision had nothing to do with his explanation of the differences and the effectiveness - as I understood it. I just like hot stuff, so I figured what the hell. But ask for yourself if the Cool Cayenne will be effective - I don't think there's a difference, but I don't remember.