Get some Humatrope, Serostim, or the like and try it out. You won't use generics again. Using Serostim now, gonna start some Norditropin Flexpro as well. I used nothing but pharma for years, then the last year switched to generics. I used the Grey tops, and black tops, and while they worked, and felt as good as pharma I thought at the time, there is just something about them that makes me not feel well. I really noticed it when I switched back to Serostim about 6 months ago. From now on, nothing but pharma for me. It's just not worth the health risk, and with pharma I know I'm getting a properly dosed product in every single vial. At the time I thought the generics were just as good, but after switching back to Seros I now realize they aren't.