There are a few ingredients in supplements that may boost testosterone. For instance, ashwagandha has been clinically studied and shown to be able to support testosterone in men. However, supplements are not used to treat or cure low testosterone levels as their effectiveness is limited.There are a few ingredients in supplements that may boost testosterone. For instance, ashwagandha has been clinically studied and shown to be able to support testosterone in men. However, supplements are not used to treat or cure low testosterone levels as their effectiveness is limited.