There is no feedback system that "reacts" to low T by making more DHT; at least, I've never heard of such a thing. FYI: I have a study which measured serum T and DHT levels before-and-after castration; T dropped by around 95%, and DHT dropped by around 70%. How do you explain THAT? The claim that the body "reacts" to estrogen by making more DHT is just as ridiculous; that idiot misterE (he appears to be gone now, and I'm glad about it) kept saying that over and over, and I kept citing that study for him in which an aromatase inhibitor was given to men with BPH (lowering their estrogen levels), and their T and DHT levels went UP, not DOWN! That shows that you should just ignore these ridiculous theories that you read on the Internet about what causes balding! Pay attention to what doctors and scientists say, not these anonymous yahoos with their goofy ideas. Baloney. B-A-L-O-N-E-Y. I've already wasted too much time on all this rubbish. Who the hell is Brian Simonis?