FIND OUT ONE OF THE BEST HGH FOR MEN HGH is a human growth hormone and is a protein naturally produced by the human body through the pituitary gland. HGH is a significant factor in your body with its primary goal of maintaining healthy tissues and increasing the strength and density of muscles and bones. It plays a vital role in many physical aspects, from the growth of cells and reproduction, to keeping ailments related to age at lower levels. What is the most effective hgh for men?