Started at 50mg and ended up using 80mg. I got a pretty rapid strength increase, but after a while of being on 80mg, I started to get what felt like high blood pressure symptoms, and I also became really lethargic. I was using TUDCA dosed properly the whole time so I know the lethargy wasn't from liver issues, bloodwork also showed no issues with liver. The only other possibility was that it was from high e2 cause I was on around week 4 of 500mg of test-e but once I dropped the tbol the lethargy went away, so I'm pretty sure that's what it was. I only lasted for about 5 weeks when I dropped it. It definitely works for strength though and gives those big pumps people talk about.