While there are many different ingredients used in testosterone booster supplements, there are several key ingredients to keep an eye out for. The ingredients that are about to be presented to you are listed here due to the fact that they contain the most solid evidence behind their effectiveness. Since testosterone boosters are such a broad and vague class of Ketosium XS Keto it can be extremely difficult to know which ones are worth your money and which ones are garbage. Like many other brands profiled here, Beast Sports is a well-known name among athletes and those looking to gain every possible edge with their workout regimen. Mucuna Pruriens is a bean that has traditionally been used to treat Parkinson’s disease. Today, it is a popular ingredient in many testosterone supplements.