Letrozole didn't work and I had gyno for years. Tried 1.5 months of Letro. Raloxifene worked tremendously. But the opportunity to get free gyno removal surgery came up, and I got the rest removed.
Ive told three guys about ralox and they only used it for 3 months and it helped them reduce it to hardly anything. My other buddy is about to start this for his bad bad gyno.
I have no experience with Nolv.