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We test every batch pulled form production with HPLC before it goes out, and again at 90 days if there's any lag—basically you get a COA that's current within 30 days or so of ship date, not one that's been sitting on a shelf for months.
What it does is holds steady at ≥99% purity by HPLC, and we've run side-by-sides with three different reference lots to confirm MW calibration within 2-3 Daltons of theoretical (4813.527 g/mol), so batch-to-batch consistency is tighter than most generic peptide suppilers manage.
retest policy isn't complicated—we'll take back unopened vials within 14 days, but after that you're relying on our 18-month retest date printed on each box; long-term storage at -20°C or -80°C (lyophilized powder, sealed with desiccant) keeps it stable past that window.
White powder in 10mg, 15mg, 20mg, or 30mg vials, packed 10 vials to a box—MOQ is 10 vials, which is pretty much one box, so you're not forced into bulk commitments that overstock a -20 freezer.
Also, one thing buyers don't always think to ask: the powder can pick up moisture fast if you open it in humidity above 60% RH, so we recommend reconstituting with sterile water in a low-humidity environment or glove bag—specifically not suited for humid benchtop handling without desiccant.
We usually have stock on all four vial sizes, but teh 30mg runs tight quarterly, so confirm lead time before ordering those if you're on a deadline.
Our MOQ is 10 vials. You can mix different vial sizes (10, 15, 20, or 30 mg) in one order as long as the total hits 10 vials.
For stock items, we ship within 3-5 business days after payment. Customized orders with your label or packaging take 7-10 extra days for production.
Yes, we include a COA from our lab with every batch. Third-party testing reports are also available on request for an extra fee.
We can customize vial sizes (within 10-30 mg) and print your brand label or logo. Just send us your design and we'll handle the rest.
Keep it sealed with desiccant at -20°C to -80°C, away from light and moisture. For short term, a cool, dry place is fine, but long-term stability requires freezing.
