Its hard to tell, many bodybuilders in their 20s and 30s using enormous amounts of AAS had no hairless but did have some in their 40 and 50s. After they had retired that is. Dorian Yates for instance. I myself used mostly Test/Tren/Deca (in conjunction with finasteride) Anavar for close to 10 years with no hair loss at all.However the last two years using no AAS Ive seen a lot of thinning. I just stated another cycle and lots if thinning is occurring. So its hard to tell. Mind you I didn't even touch AAS until I was maybe 24-25 and saw no hair loss until I hit around 33-34. Mind you things like masterone, winny and anadrol are infamous for hair loss. Tren seem to be a hit or miss for most. It either causes no problems or decimates the hair. My point? You are only 23, I wouldn't conclude that you are male pattern baldness "immune". Also look at the males on your parents side. If no one has male pattern baldness, you are probably lucky. If the males on both sides have male pattern baldness, its almost sure that you will too its just a question of time. In my case the guys on both sides had male pattern baldness but I had some luck as in they all suffered the loss slowly bu gradually over a prolonged time. Secondly, now in my mid 30s, even though I have lost maybe 20-30% density, I still look like I have a thick amount of hair because I had ridiculous amount of thick hair. I mean as a kid it looked like I was wearing a helmet my hair was so thick. In my teens I needed a palm full of gel. Some people inherently have thin hair from the onset. I suppose I would be a great candidate for a FUE but I suffer from diffuse thinning.