Max LMG or 13-Ethyl-3-Methoxy-Gona-2,5(10)-Diene-17-One is a great prohormone for bulking up and strength gains. The only bad thing is it's known for bloat and potential risk for gyno.
Max LMG appears to have a half life of about 10 hours. It's not a 17aa steroid so it's not as hard on the liver as some 17aa prohormones. I would still run a liver shield supplement just to be safe.
This prohormone may affect the libido so I would recommend using a good test booster along with it. Tribulus works great for helping with libido during use of certain prohormones.