You tested your DHT serum the following day after application. Thats going to be the day when its is at is lowest. Maybe better to get DHT serum tested after 6 days just before applying your next dose. Supposedly topical dutasteride leaves the system much faster than oral duta as topical application skips 1st pass through the liver resulting in much reduced metabolite production and therefore quicker return to baseline DHT level.Yes, but this "low" DHT inhibition after just 2 doses was enough to bring my serum DHT below the normal range and it also lowered my T. I'm sure my serum DHT would drop just like with oral dutasteride if I would use it long enough.
I don't even know where I can check my scalp DHT, and I bet it's not very cheap and easy to make.