From the research I've done & the people I know - you are very right. There are differences in the 2 brands, but the manufacture are the same. The manufacture makes a few others - but make no mistake, no all hgh is equal. Rips & hyges are as good as it gets.
Yeah, I'm not 100% sure, but from what I have heard there are only like three companies in china that make the majority of the HGH. I stumbled on one of their websites and they say they will make specialty caps with your logo, boxes, anti-fake serial numbers, labels etc..
I think one big problem with HGH suppliers is when they order a batch of 4 iu vials and order the labels to say 10 iu. That may explain all the "weak" GH.. it is not in fact "weak" it is just labeled with a larger dose than it actually contains.
But that of course is just my speculation. It would make sense that those "100 iu kits" would be sold for $90 if they only contained 4 iu of good growth.