I would love to see pics indicative of the difference that AR regulation or changes induce new hair growth. Unfortunately on our HRT thread, we have people discussing this but it never seems to go anywhere. Our thread, where I have seen many pics of clear and consistent regrowth by perhaps a handful of people who post is indicative that HRT can be successful at creating the hair growth of an adult female.
We have multiple people posting hair recoveries over time which can be followed as it goes forward. I have five years of pics but it seems as though two things finally helped me break through. One of them is oral minoxidil which any guy can try.
The second thing is that I believe HRT improves hair incrementally over many years but cis-guys often don't want to wait several years for uncertain payback. Pursuing HRT for non-MtF's is a bit of a slog, meaning there can be multiple meds to monitor the intake of. I am doing this without a "pure" AA but I am using medroxyprogesterone, which might be a much better substitute.
Some of the literature indicates that to restore hair from slick baldness in a year or so, the person has to maintain hormone levels of an adult cis-female to "turn on" hair growth again, for 12 full months. One might view it as a digital turning on where the body provides feedback to the signals that the change in estrogen and testosterone levels provide that say "oh, this is an adult cis-female and cis-females have all of their hair". We know that virtually no MtF's lose more hair after starting HRT. FtM's on the other hand, often begin to bald as soon as they put down the syringe of testosterone.
I know you guys are looking for a solution that is non-feminizing but I sincerely doubt that such a thing exists. Baldness is present apparently on several genes so simply re-writing one or two genes would not do it. We have two different types of "candidates", namely MtF's who want further feminization and cis-guys who don't want any but because the parameters are on a spectrum, it works as a discussion thread. Second, for some cis-guys, there is a level of feminization as a trade-off that is acceptable which I would characterize as slight gyno. MTF's tend not to grow breasts at all in many cases and they can be just as obsessed about inducing more breast growth as the folks who are focused on hair. Like cis-females, however it appears that there is no way to make breasts increase in size short of gradual titration of estrogen and AA's.
I laugh because I say this to put things in perspective stochastically but I have had significant and persistent breast growth that is impossible to hide on my slight 5' 6" frame. Much larger guys tend to have breast growth spread over a much larger surface area and any growth will appear minimal and easy to hide. This is a perfect example of a "bug versus a feature". I tried to avoid breast growth for three years unsuccessfully and they appear to still be developing persistently. How much? Almost D cups and they are round like a cis-female's. Many/most MtF's have conical breasts that they find to differ too much from cis-breasts for their tastes. Hence, 50 to 70 percent of MtF's opt for breast augmentation.
It's all worth it for me, male, female and other because I am restoring almost a full head of hair and it's only been six months.
Goddess bless your attempts to find your solution for you.