I think the DHT in the blood has relatively little to do with balding. It's the DHT that's generated inside hair follicle cells which causes the problem.
Yes, but I'm saying that the DHT that drifts in from the blood is a relatively small part of the _total_ DHT to which the hair follicles are exposed. If 90% or so (just a wild guess) of the DHT that binds to androgen receptors in hair follicle cells is self-generated within those same cells, why worry about the 10% or so which comes back in from the blood?
Does anyone know if there is an enicrinological forum or something of the sort for me to ask this question? It turned into a Chinese Medicine thing somehow...