Extra Hot Cool Cayenne formula contains 100,000 heat-unit cayenne that has completed the unique and proprietary Bio-Cool process. This process keeps the cayenne in its natural, spicy hot form, but now, it won’t burn your stomach. Solaray has accomplished this by specially processing 100,000 heat-unit cayenne with 100% natural ingredients including ginger root, modified guar gum, vegetable fiber, and annatto.