Where are you all getting your RU from?

[25 going on 65]

I am on dut+fin but still very slowly diffusing

I chickened out of oral spiro (also flutamide, bical etc) last year because I was scared of being feminized

I need more antiandrogens. Where is the most reliable place to buy RU? I do not care about money. I just need to know what I buy is legit

Also how do you know your source is legit?