 these tiny pellets placed just under the skin, right butt cheek for me last time. And it lasts me for six months. My testosterone 1200. That's where it was at when I was 23. You hear people say, I wish I knew then what I know now, which means if I had the knowledge that I've gained by living on earth for all these years, but I had that energy that I once had, I'd be able to get something done. But now you can have both.