Comparing a new source of HGH to the one I have been using this is what I have noticed and looking for some expert input. I have been using a brand that seems to be doing a good job but in looking at a new brand from China there is about 1/2 less powder in the vial and it is loose powder where the one I have been using is solid and is not loose powder like the new one. They both are blue tops. Are these brands made differently? They are both 10 iu bottles however the amount of powder and textures are different. Any advise? Thank you.