well got 360 I.U.'s of Kexing from a very reliable souce a month ago, everything came O.K. shipped cold ect refrigerated immediately. started 2 I.U.'s a day 5 days on 2 days off. been going almost a month, seems to be working, sore joints more vascularity, raised metabolisum., when I but the BA water into the vial I noticed there is no vacum, so this moring I decided to take a closer look at more of the vials, in a lot of them the protein that is supposed to be at the bottom is in the middle or the top, and on some the proietin moves?? this can't be good, there appears to be no sign of moisture?? you guys think its still good, or am I out of luck?? like I said it seems to be working I can definately tell a difference.. will air hurt the protein??