RopaxinT  Testosterone is important for building muscle mass, burning fat, maintaining sexual and mental health, and much more. Your body naturally produces testosterone, but sometimes its natural levels are not where they should be. Testosterone boosters, which are usually mixtures of herbs, can help. How testosterone stimulants can help develop muscle healthy testosterone levels are important for our overall health. Conversely, having low testosterone levels can have some serious disadvantages. Many men suffer from low levels of T and testosterone boosters can help. Keep in mind If you already have good testosterone levels, these testosterone boosters probably will not do you much good.