So you want more testosterone and you’re thinking about a booster supplement… but you’re asking what everyone asks… do testosterone boosters work? Testosterone is a steroid hormone that is produced by the testes in men, and the ovaries in women, although women produce much smaller amounts. Testosterone is the primary hormone in the development of secondary sex characteristics in males, including deepening of the voice, growth of body hair, increased muscle strength and bone mass. It is important that testosterone levels be properly balanced in men. High levels can cause aggressiveness and risk-taking behavior, while low levels can lead to lack of energy, low sex drive, reduced muscle mass and increased body fat, as well as depression. So men, you want to learn how to increase testosterone levels? Wondering about testosterone supplementation? What do testosterone supplements do? Do testosterone supplements work to increase testosterone? Are testosterone supplements safe? What are the testosterone supplements side effects?