I gave myself testosterone injections which the doctor prescribed for me. I decided to stop. Testosterone come in an oil, so the needle is much larger than normal. There is this stuff you can place on your chest, but it is very expensive since my insurance will not cover it. It amounted to over $1000 a month. When I was using these injections. I did notice some improvement, particularly on the male side of things. However, I became tired of those injections.