There’s not a man alive who doesn’t wish his testosterone levels were higher, except maybe Justin Bieber. That’s because testosterone is the hormone that’s associated with manliness. It’s one of the main reasons that men have more muscle, greater strength, less fat, and a bigger sex drive than our female counterparts. So when our testosterone levels start to fall— due to age; stress; or just regular, intense training—we need to do everything in our power to pick them back up. These three ingredients can help make a big difference in your testosterone levels.