Stan QV 50?

I have a bottle of Stan QV50, everything I get from this source is excellent, but Im concerned that the substance inside does not seperate (just stays milky-white), I have injected it twice now and it left me huge welts both times and hurt for at least a week. My question is: Is this normal? I have checked the code with QV, and it looks as if it could of been made after the last update. It is the next number in line.....I would appreciate any help. Thanks

I used it last year and for precontest this year. It does stay milky white so that is not a problem. I would also inject slowly and use use a 25g pin if to inject.

Ok...thanks for the help....I heard it has awesome effects, yet its painful....(for me at least)