To verify Mazdutide, match the exact SKU, the nominal size on each vial, the number of vials in the pack, and a COA issued for that same SKU and batch. The Mazdutide product listing records MZ5 at 5 mg per vial with 10 vials per pack, and MZ10 at 10 mg per vial with 10 vials per pack. Those values are nominal catalog facts. A published certificate applies only to the named tested batch and SKU; it is not evidence for another size or for a later shipment.
Listed SKUs, vial size, and pack quantity
The catalog records two public listed variants. That record states public listed variants only, at most 40, and is not a claim that the list is exhaustive. CAS number, molecular formula, and molecular weight are unknown on that record.
| SKU | Nominal size per vial | Size unit | Vials per pack |
|---|---|---|---|
| MZ5 | 5 | mg | 10 |
| MZ10 | 10 | mg | 10 |
Editorial guidance on per-vial size versus pack quantity treats per-vial size, vials per pack, and pack price as three separate fields. A description such as "10 mg × 10 vials" means ten vials with a nominal size of 10 mg each. It is not a single vial containing 100 mg. The sum across one pack is label arithmetic, not an analytical measurement. Actual fill and peptide-content measurements belong to the particular batch report.
The same guide lists this pre-order check: match the exact product and SKU; check the per-vial size and unit; check the number of vials per pack; set the number of packs required; and review the matching batch records and confirm the order details. If a quotation or product documentation uses a different packaging description, ask support to reconcile it before relying on the calculation. Selecting a different SKU can change both the pack price and the available stock. A saved screenshot can become outdated when prices or availability change.
How to match a COA to SKU and batch
A SKU identifies a listed product variant. A batch number identifies a batch record. Use both when locating a COA: a product name by itself is not enough when several sizes or batches exist. Compare product, SKU, batch, and certificate number. A report for MZ5 should not be used as evidence for MZ10 merely because both say Mazdutide. An older published batch is not evidence of the batch that will be shipped next.
When a report is missing, ask support for the exact SKU and batch. A missing public result is not automatically a failed test, and it is not a passed test either. If a previously shared report link is no longer available, ask support for the current documentation rather than substituting a different batch.
How to verify a CertiPeptide COA sets this sequence: read the product and SKU from the product page or order documentation; find the batch; open the batch page and check the certificate number, sample identity, test date, and listed laboratory; open the original report and compare the values and units with the summary; then follow the report-specific verification link. A verification page may require an account with the report provider. Seeing a link alone does not prove that a report is currently valid. If the provider requests login or the record cannot be confirmed, resolve that with the provider or support before treating the verification as complete. A published report does not mean every order receives that batch; confirm the allocated batch separately.
Published batch records for MZ5 and MZ10
Two published COA records are available. Each covers recorded results for that batch only. Provider verification links were not independently fetched. The records are not evidence of clinical suitability or of every batch.
MZ5 — [batch PBZTMK42NNU6](https://certipeptide.com/en/lab-reports/mazdutide/PBZTMK42NNU6). Certificate QC-2026-T8HAZ8TNSS. Laboratory: Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group). Test date: 2026-06-29. SKU MZ5, 5 mg. Summary reports: Identity Conforms; Purity 99.0 %; Weight 5.93 mg; Endotoxin <3 EU/mg.
| Item | Analyte | Method | Specification | Result | Determination |
|---|---|---|---|---|---|
| Appearance | Mazdutide MZ5 | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | Mazdutide MZ5 | MS | Corresponds to theoretical mass | Conforms | Pass |
| Purity | Mazdutide MZ5 | HPLC | NLT 98.0 % | 99.0 % | Pass |
| Peptide content | Mazdutide MZ5 | HPLC | NLT 90.0 % | 92.9 % | Pass |
| Actual fill | Mazdutide MZ5 | Gravimetric | 5 mg | 5.93 mg | Pass |
| Water content | Mazdutide MZ5 | Karl Fischer | NMT 8.0 % | 4.8 % | Pass |
| Bacterial endotoxins | Mazdutide MZ5 | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
MZ10 — [batch INI01BOSKLS3](https://certipeptide.com/en/lab-reports/mazdutide/INI01BOSKLS3). Certificate QC-2026-HZU47L5CCU. Laboratory: Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group). Test date: 2026-06-29. SKU MZ10, 10 mg. Summary reports: Identity Conforms; Purity 99.2 %; Weight 11.90 mg; Endotoxin <3 EU/mg.
| Item | Analyte | Method | Specification | Result | Determination |
|---|---|---|---|---|---|
| Appearance | Mazdutide MZ10 | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | Mazdutide MZ10 | MS | Corresponds to theoretical mass | Conforms | Pass |
| Purity | Mazdutide MZ10 | HPLC | NLT 98.0 % | 99.2 % | Pass |
| Peptide content | Mazdutide MZ10 | HPLC | NLT 90.0 % | 91.8 % | Pass |
| Actual fill | Mazdutide MZ10 | Gravimetric | 10 mg | 11.90 mg | Pass |
| Water content | Mazdutide MZ10 | Karl Fischer | NMT 8.0 % | 4.0 % | Pass |
| Bacterial endotoxins | Mazdutide MZ10 | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
Nominal catalog size and gravimetric actual fill are different fields. On these records, MZ5 actual fill is 5.93 mg against a 5 mg specification, and MZ10 actual fill is 11.90 mg against a 10 mg specification. Peptide content is a separate HPLC result (92.9 % on PBZTMK42NNU6; 91.8 % on INI01BOSKLS3) and is not the same as purity. An endotoxin result of <3 EU/mg is the recorded LAL (gel-clot) determination against NMT 10 EU/mg; it is not a sterility claim and does not speak to unlisted tests.
Verification checklist
- Confirm the product name Mazdutide and the exact SKU (MZ5 or MZ10) on the product page.
- Read nominal size per vial and vials per pack as separate fields, not as one combined mass.
- Locate the batch number allocated to the material, not only a previously published example.
- Open the matching batch page and compare SKU, batch number, certificate number, test date, and laboratory.
- Compare each analyte, method, unit, qualifier, and determination with the original report.
- Do not copy MZ5 results onto MZ10, or the reverse.
- Follow the report-specific verification link if provider confirmation is needed; treat login-gated records as unconfirmed until the provider or support resolves access.
- If identifiers differ or a public report is missing, send support the SKU, batch number, and the specific difference rather than substituting another batch.
Unknown CAS number, molecular formula, and molecular weight remain unknown. These two COAs do not document other SKUs or future lots.
Frequently Asked Questions
Which Mazdutide SKUs are publicly listed?
The public product listing records MZ5 (5 mg per vial, 10 vials per pack) and MZ10 (10 mg per vial, 10 vials per pack). That list is public listed variants only and is not a claim that it is exhaustive.
Can an MZ5 COA be used as evidence for MZ10?
No. A report for one size should not be used as evidence for another merely because both say Mazdutide. Each published certificate applies only to the named batch and SKU.
Does a published Mazdutide report mean every order receives that batch?
No. Confirm the batch allocated to the order separately. An older published batch is not evidence of the batch that will be shipped next.
What if a Mazdutide COA is missing from the public records?
Ask support for the exact SKU and batch. A missing public result is not automatically a failed test, and it is not a passed test either. Do not substitute a different batch.
Explore Further
Browse our research peptide catalog and review third-party lab reports & COAs for published batches.
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Research use only. The information above is provided for educational and laboratory research purposes only. The compounds discussed are not approved for human or veterinary use, diagnosis, treatment, or the prevention of any disease. Nothing here is medical advice.
