If you stick with the sources that have stood the test of time and test their GH products, you will find that there is not much difference between the generic and pharmaceutical GH. In fact some of them are identical, literally.
Which ones are those?
I guess TP is one of them. I actually wanted to get some, but their greytop is unavailable for now. They have others, but the fact that they are advertised as "potent" or "strong", turns me off. I am not looking for something "potent" to "strong", I am looking for pure clean somatropin that does the job just like a pharmaceutical grade. 1mg of somatropin is 1mg of somatropin. That is why I wanted to try the greytop that is supposed too be 99%+ pure.