On page 461, you can see the author detail that RU58841 produces “marked hair regrowth” on the macaques heads. Finasteride increased hairweights by about 25% and some regrowth, 4MA- which is a topical alpha five reductase inhibitor, stopped further hairloss, and MK386–which is a alpha five reductase type one inhibitor that results in less sebum…really had little effect on the progression of Alopecia in the macaques.
The conclusion is clear though. Ru58841 would be the best product for baldness if one could obtain it. If someone used topical RU58841 with finasteride, they’d probably keep what they had for the rest of their life other than just senescent thinning.
Interestingly, serum DHT might play a role in baldness—at least a small one. Finasteride’s performance was better than 4MA’s performance was because finas did regrow a little hair. 4MA just stopped further baldness.
Im suprised STILL that no company has tried to buy RU58841 and sell it via the internet or whatever for a reasonable price. A LOT of men would spray something on their heads that pretty much assured them of keeping their hair with no internal side effects. A combo of RU58841 and topical 4MA would be a super-topical anti-androgen combo. Young men would probably never lose their hair with it. What a shame.