Testosterone is the primary male sex hormone that supports sexual and reproductive development in men. It also plays a role in fat distribution, muscle mass, and sexual function. Testosterone levels naturally decrease with age, which can lead to increased fat deposits and signs of low levels like decreased libido. The document then discusses several herbal supplements - Safed Musli, Ashwangandha, Shilajeet, Kesar, Kauncha Beej, Musli, and 24k Gold - that are claimed to support testosterone levels, sexual health, stress relief, memory and more when taken together. The supplements are said to strengthen tissues and bones while regulating sexual functions.