Today, Coleus forskohlii is used as a fat burning supplement. The main bioactive element in Coleus forskohlii is called forskolin. Through forskolin, Coleus forskohlii supplementation may boost testosterone, and protect against cancer and swelling. Additional research study is needed to confirm these impacts, because forskolin is most often used as a research tool artificial insemination, 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 levels are connected with increased rates of weight loss, and could boost the results of other fat burning compounds. Forskolin is still being researched for its effects on testosterone and fat loss, but preliminary evidence is promising.