Certificate of Analysis
Retatrutide · 30mg
Independent third-party testing performed by MZ Biolabs, covering HPLC purity/quantity and mass-spec identity confirmation for this production batch.
PEPTRYNCertificate of Analysis
ProductRetatrutide · 30mg
Batch2026-08-31
MethodHPLC-UV-MS
Purity99.32%
IdentityConfirmed
Tested byMZ Biolabs
Verify This Report Yourself
This certificate carries a QR code linking to an independent report hosted directly on MZ Biolabs’ own site, not ours. No need to scan it:
This certificate carries a QR code linking to an independent report hosted directly on MZ Biolabs’ own site, not ours. No need to scan it:
How to read this retatrutide 30 mg certificate
This certificate is for retatrutide 30 mg, lot 2026-08-31, tested by MZ Biolabs with HPLC-UV-MS. It reports 99.32% HPLC purity, a measured quantity and identity by mass spectrometry. It does not include an endotoxin result.
- Match the lot. Compare 2026-08-31 with the lot on your vial. The lab analyzed this lot on 2026-09-09.
- Check identity. The lab’s report lists an expected monoisotopic mass of 4,728.47 Da and a measured mass of 4,728.52 Da.
- Read the quantity line. The lab’s report lists a measured quantity of 36.71 mg against the 30 mg label (+22.4%). Our September 2026 data report left this lot out, so the figure comes straight from the lab’s report. It is one lot from one lab, without a stated assay uncertainty.
- Note what is missing. The 10 mg lot has an endotoxin report and this one does not. If endotoxin matters to your work, ask for it before you order.
- Know where the records sit. The purity, quantity and identity record is on MZ Biolabs’ own site, linked above and by a QR code on the certificate.
More on retatrutide: retatrutide product page · retatrutide price by vial size · buying guide · retatrutide 10 mg certificate · third-party tested peptides · how to read a COA · COA Library. Sold for laboratory research only, to buyers who are 21 or older.