There are multiple symptoms that can arise from low testosterone levels such as decreased daily energy and chronic fatigue, low libido, mood changes, feelings of depression, hair loss, and loss of muscle mass. Here at Nutrition Faktory we have put together a list of our top 10 testosterone and performance boosters that can help you regain your youth, naturally bump up testosterone, optimize building muscle, lose body fat, and feel better overall. From Test Launch to Chosen 1, we have many options to pick from.