Just as a follow up, I have now used both the TNE and the Proviron. Both are GTG. The TNE has only a little bit of bite going in (it is in oil), but the next day the area is sore. The day after that it is gone.
The Proviron definitely increased my libido. I am hoping it will counteract the massive E2 spikes caused by the TNE, too. Will be getting blood work done in a week or so and will find out.