Testosterone is a hormone responsible for the male characteristics in a person. It is essential in a male’s body for many normal functions, including growth and development of the genitals, muscles, and bones. It also helps cause normal sexual development in boys. In case of low testosterone levels, a person might experience a few symptoms like sleep disturbances, increased risks of strokes and heart attacks low sexual desire, depression, weight gain tiredness, poor concentration and erectile dysfunction. In such cases boosters are prescribed, to pump up the testosterone levels. A coin has two sides and so do the supplements that are prescribed to increase the level of testosterone in the body. They differ for each person and they are noted to be beneficial to some as well.