From my personal experience and what I read on various forums so far....
It is often the case that many of us have the peachy fuzz with or without having noticed it in the past. Often it is when we start a new regime that prompted us to look closer. Im not suggesting it is definitely not due to Trinov in your case (I hope it is), and it could be that Trinov slowly made it more visible (or they look more visible with Trinov on it?). I guess we will never know.
However, I don't think I've ever seen credible evidence of anyone turning a bunch of vellus hair to truly terminal to the point that that you've got a small area covered up. What Finasteride/Minoxidil combo often achieves is a few isolated hair turning darker and growing in the middle of a bunch of peachy fuzz, but stops at a length. This did improve my cosmetic appearance somewhat though.
I pretty much concluded mine won't get any better having persisted with my regime for 3 years, so went for the transplant. However, the thinning crown was not worked on and I would love to believe Trinov can add some thickness...only time will tell.