Yup no such thing as quality generic simply because of inconsistencies, I take hyges and with every morning shot I don't know if I am really injecting 6IU, 4IU or 2 IU's. While I have done serum testing to show they are legit, I haven't done a test for each vial Ive tested, and if history tells us anything is generics have always been inconsistent. But back on subject, kigs made me feel like shit, and tired "all day", switched to hypes and my health improved in that aspect. From what I've gathered different growth affects individuals different, I don't know why because its all the same compound. But it might show you what else is in these things besides the amino chains.