I read a lot in forums that if loses its effectiveness after 10 years. I’ve been on the drug since I was 19 at the first signs of miniaturizing. I may have confused the miniaturizing with a mature hairline. I’ve now been on the drug for 6 years and I’ve kept exactly everything I ever had, I had a Norwood 1 with small amount of thinning.
Maybe you were never balding and misjudged your situation. If I were to have seen you years ago, I would have done a HAIRCHECK test and if I didn’t detect hair loss with this accurate instrument, I would never have prescribed the drug to you.