Don't know what that means? I've used generics nothing good to say about them to be honest I've seen people transform on human grade. As far as blood test I don't know how the igf levels work but gh serum on my generics scored 36 and that doesn't mean shit. Chinese are smart and probably figured out a way to spike those levels. I'd be willing to bet my life generics don't come close to the quality of human grade fda growth. I have seros on the way I'll be able to give a much better opinion soon