Today, Coleus forskohlii is used as a fat burning supplement. The main bioactive component in Coleus forskohlii is called forskolin. Through forskolin, Coleus forskohlii supplementation may increase testosterone, and protect against cancer as well as irritation. Additional study is needed to confirm these effects, considering that forskolin is most often used as a research tool in vitro, or outside the physical body, like in a test tube or petri dish. Forskolin may act differently inside the body. Forskolin increases cellular levels of an enzyme called cyclic adenosine monophosphate (cAMP). Elevated cAMP degrees are linked with increased rates of weight loss, as well as can enhance the effects of other body fat burning substances. Forskolin is still being researched for its effects on testosterone and body fat loss, but preliminary evidence is promising.