your GLP-1 can be 99% pure and still be shorting you like 15%
ok so this is the thing nobody really talks about with the whole "is it legit" convo - purity and quantity are two totally different things. a vial can nail one and quietly flunk the other and you'd have no idea.
we see this with GLP-1s constantly. shop orders vials at whatever mg, and the peptide inside is actually really clean, high purity, no issues there. but the amount that's actually IN the vial is way under what the label says. had one recently labeled 50mg, tested at like 43. so it's 99% pure AND 14% short at the same time lol. both things true.
and it's usually not even the shop being shady. it comes from upstream. they order 50mg vials, get underfilled ones, slap a 50mg label on em cause that's what they paid for. if they're not testing the actual content before labeling they legit don't know either.
anyway the reason this matters way more for GLP-1s than most stuff ,you're dosing these by the microgram. your whole math assumes the label's right. if the vial's 15% light then everything's off and you'd never catch it from a purity number alone.
so tl;dr .. a real COA shows purity (%) AND net content (mg). if a shop's only flashing you a purity number they're kinda answering half the question and hoping you don't ask about the rest.
anyone actually gotten a vial tested for content not just purity? curious what people got back