could still be real, colour top is not a good indicator. well easy way to tell if its hcg or not is buy a pregnancy testing kit. squirt the mixture, just a small drop. if you are pregnant its hcg.
only way without getting lab analysis to know if its GH or decent stuff, run 6IU per day for 3 weeks. you should get the sides, carpal tunnel or sore knees and low back if its real and correct strength GH.