I went on Propecia and Ketokonazole 2% eight months ago to stop my corners from thinning further. The deep recession (thinning in the midscalp) has already been completely reversed, and I still have baby hairs in the corners, longer and darker than vellus hairs but shorter than normal hair. I would of course love to see these grow bigger, but just keeping those baby hairs as such for a few years would increase my stakes at benefiting from future treatments. I’m looking for solutions to help me just keep the baby hairs, even if such solutions might have no effect on the persistence of fuller hairs.
The growth of ‘baby’ hairs from propecia do not usually become full ‘terminal’ hairs and the formation of full terminal hairs is very rare in the leading frontal edge. You should, of course, watch it for up to a year and maybe you will be one of the exceptions to the rule for frontal growth.