Wholesale Tirzepatide Costco: Factory Direct 99% Purity Weight Loss Peptide

Honestly, most people come to us after trying a few suppliers and getting burned by inconsistent purity or missing paperwork — we've been in this game long enough to know that batch-to-batch consistency is the real headache. We run every single batch through HPLC before it leaves, and the purity is always above 99%, which I can show you on the COA, and the molecular weight checks out at about 4813.5 g/mol if you're verifying against reference standard. One batch we had last year showed 99.2% while another hit 99.4% — that's pretty much what you'll see, give or take a fraction.

But the thing is, what it does is it binds as a dual GIP and GLP-1 agonist, so it's not your standerd single-target peptide — researchers running metabolic studies usually go with the 10mg or 20mg vials because the dosing flexibility is better for titration. it come as a, and I always tell buyers to store it at 2-8°C after reconstitution; it's a must if you want to avoid degradation after a week or so. One detail nobody mentions is that the powder can settle slightly during shiping — just let it warm to room temp gently before reconstituting, nothing to worry about.

We actually have a retest policy that kicks in at 12 months from teh manufacutre date, and I'd say about 80% of the batches come back at 98.5% or higher even then. You'll get the SDS and TDS with every order, (usually within 24 hours if you email us), and the MOQ is typically 10 vials but can go lower for repeat buyers. Not every batch is identical in terms of solubility speed—some dissolve in 30 seconds, others take a full minute—but that's just subtle variation in the lyophilization process.

Anyway, for those looking to customize packaing — say, 30mg or 60mg per vial instead of the standard 10mg — our company can do that but it adds about 5 business days to the lead time. We don't do OEM labeling for this one, but we can include a generic vial label with your lot number and CAS number, which is 2023788-19-2. It's not suited for anything beyond research use, honestly — no human or animal administration, and if anyone tries to claim otherwise, well, that's their business, not ours.

So for logistics, we ship refrigerated on dry ice for any international orders, and you'll want to plan for a 15-day or so transit window (check our lead time page for your region). Customs paperwork we handle on our end which is easier than you'd think, but the import duties are your call. Most buyers go with the 10mg vial for initial studies, and then scale up once they confirm the purity and activity match the COA specs.