Bucked Up RUT Test BoosterTestosterone is an important male hormone. A male begins to produce testosterone as early as seven weeks after conception. Testosterone levels rise during puberty, peak during the late teen years, and then level off. After age 30 or so, its normal for a mans testosterone levels to decrease slightly every year. Testosterone is one of many factors involved in the development of muscle bulk and strength. Testosterone increases neurotransmitters, which