click to enlarge You may know of HGH (human growth hormone) as the hormone responsible for making you grow taller during your teen years, but this vital hormone continues to impact your body in a myriad of ways for the rest of your life. Unfortunately, our HGH levels peak during adolescence and subsequently decline as we age. The good news is that men and women can use human growth hormone supplements to boost HGH levels in the body naturally. You might have heard that athletes and bodybuilders take these supplements to bulk up, but you can take them to target other goals, too, like younger-looking skin or a stronger libido.