4-ad-ec and 19-Norandrostenediol stack?

I’ve used biotest’s 4-ad-ec successfully in the past. I have never tried 19-Norandrostenediol before. I am curious if anyone has an opinion about stacking these two products together?

I value the hair on my head, so I have been looking for ph’s that have very mild side effects. Anyone have any experience with propecia and 19-Norandrostenediol?

I would appreciate any thoughts on the stack. Thanks.