Is there any study that proves how genes impact on the efficacy of dutasteride/finasteride. It would be interesting to read. Btw my case is kinda hard because treatment did work at first but it stopped to work 6 months ago. I suspect the gains were due to oral minoxidil, because I started dutasteride 2 months before oral minoxidil and I saw no improvents on hair thinning or density till i added oral minoxidil, when I added it, hair started to grow again, but now androgens could be killing the follicles even tho I'm on a higher dose of oral minoxidil than I was when I first started.