For the past several months I have been using Hygetropin.com.cn tribal top 200iu kits and 100iu brown tops. Needless to say, I absolutely love the results, especially compared to other authentic Chinese generics. I have seen blood test after blood test confirming the quality of .com.cn. If the blood tests were not enough, the fact that my body has transformed in the last 5 months would be proof by itself. I never thought I would purchase rHGH from any other source. Low and behold, one of the most highly renowned sources on Eroids had an offer on some 200iu green top Hygetropin.cn kits that was just too good to pass by. I know have secured 600ius of each Hygetropin. I will be conducting LabCorp blood tests on each manufacturer. This should be interesting. I have WITNESSED .com.cn consistently test in the 40plus range for some time. I have seen pictures of the yellow top hygetropin.cn test crazily high like 60plus of which I am skeptical. I am a fan of the 200iu kits and that is pretty much all I ever purchase. I believe this will give me a decent comparison of the two, given the fact the .com.cn is batch #20130601 from 6/17/2013 and the .cn is #20130808 from 08/2013. I can't wait to see if there is really any difference (I doubt it).