The effective dose for DHEA is 75mg per day (taken as 25mg 3 times a day). My twin sister still takes it, but for us I think it's in vain. My AMH result was 1.8 and my sis's was 0.7. terrible!! I've stopped taking it, it was a huge decision. It meant that I was saying goodbye to the chance of using my own eggs. We've started the process of using an egg donor. So sad but oddly exciting at the same time.