Testosterone, does it matter how much you have?
Some people believe that high levels of testosterone can cause male pattern baldness. However, this is not true and has been disproved multiple times in studies. Men who have low testosterone and receive therapeutic injections of testosterone have not noticed any difference in loss of hair. Additionally, studies have shown no changes in the hair of men with normal levels of testosterone who received injections. While testosterone does not cause balding, the main cause of balding is actually from a different hormone.
It is the result of the male hormone called Dihydrotestosterone, or DHT. DHT is the most potent hormone in men. As males get older, DHT tends to start producing faster. The older the male gets, the less DHT is actually used, so it starts to build up in his body. This eventually begins to clog the hair follicles and blocks the nutrients that are necessary for normal hair growth.