I can't recall my exact liver values after my last Msten run but they were only elevated but still within range after a 4 week cycle @ 20. The others I would only be guessing, but the hepatoxicity of all three is listed as moderate in various sources. I did read that one DMZ showed little to no significant effect on liver values in patients for 45+ days. Honestly man, at those different lengths and dosages, it's almost a wash. But I would probably choose the shortest cycle for less prolonged liver stress.