To verify a listed Retatrutide item, match the product name and SKU, then read per-vial size and vials per pack as separate packaging fields, and open the certificate of analysis that belongs to that SKU and batch. A product name alone is not enough when several sizes or batches exist.
Match the SKU, vial size, and pack quantity
The public Retatrutide listing records CAS number 2381089-83-2, molecular formula C221H342N46O68, and molecular weight 4731.4 as catalog specifications. That page lists public SKU variants only (at most 40) and is not a claim that the list is exhaustive.
Public listed variants in that catalog all show 10 vials per pack, with different nominal milligram sizes per vial:
| SKU code | Nominal size per vial | Vials per pack |
|---|---|---|
| RT5 | 5 mg | 10 |
| RT10 | 10 mg | 10 |
| RT15 | 15 mg | 10 |
| RT20 | 20 mg | 10 |
| RT30 | 30 mg | 10 |
| RT40 | 40 mg | 10 |
| RT50 | 50 mg | 10 |
| RT60 | 60 mg | 10 |
| RT100 | 100 mg | 10 |
| RT120 | 120 mg | 10 |
Site editorial guidance on per-vial size versus pack quantity treats per-vial size, vials per pack, and pack price as three separate fields. A product label such as “10 mg × 10 vials” describes ten vials with a nominal size of 10 mg each. It is not a single vial containing 100 mg.
For listed SKU RT10, that guidance records product Retatrutide, SKU RT10, nominal size per vial 10 mg, vials per pack 10, and a nominal sum across one pack of 100 mg. The sum is label arithmetic, not an analytical measurement. Actual fill and peptide-content measurements belong to the particular batch report.
Before ordering, the same guide recommends matching the exact product and SKU, checking the per-vial size and unit, checking the number of vials per pack, setting the number of packs required, and reviewing the matching batch records. If a quotation uses a different packaging description, ask support to reconcile it before relying on the calculation.
Find the COA by SKU and batch
A SKU identifies a listed product variant. A batch number identifies a batch record. Use both when locating a COA, as described in the site guide on finding a COA by SKU and batch.
| Identifier | What to compare | Example |
|---|---|---|
| Product | Exact product or blend name | Retatrutide |
| SKU | Listed size and pack variant | RT10 |
| Batch | The batch in the document | R3Y0BM87SYEP |
| Certificate | The particular issued report | QC-2026-CMJBJX7R8G |
Open the product page, select the SKU, and read the matching certificate panel. Selecting a SKU updates the report without moving your viewing position.
A report for RT5 should not be used as evidence for RT10 merely because both say Retatrutide. Likewise, an older published batch is not evidence of the batch that will be shipped next. When a public result 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.
Published batch COAs for RT5, RT10, and RT20
The three published records below apply only to the named tested batch and SKU. They are not evidence of clinical suitability or of every batch. Provider verification links were not independently fetched.
RT5 batch DAAIRBGSY0KE
The RT5 batch DAAIRBGSY0KE record is for SKU RT5 (5 mg), certificate number QC-2026-HCXHYJFE9Z, laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), test date 2026-08-25. Summary values: Identity 4730.8 Da; Purity 99.3 %; Weight 5.49 mg; Endotoxin <3 EU/mg.
Recorded tests, each with analyte Retatrutide RT5:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | MS | 4731.4 +/- 1.0 Da | 4730.8 Da | Pass |
| Purity | HPLC | NLT 98.0 % | 99.3 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 91.8 % | Pass |
| Actual fill | Gravimetric | 5 mg | 5.49 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 4.3 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
RT10 batch R3Y0BM87SYEP
The RT10 batch R3Y0BM87SYEP record is for SKU RT10 (10 mg), certificate number QC-2026-CMJBJX7R8G, laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), test date 2026-08-24. Summary values: Identity 4730.6 Da; Purity 98.6 %; Weight 11.04 mg; Endotoxin <3 EU/mg.
Recorded tests, each with analyte Retatrutide RT10:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | MS | 4731.4 +/- 1.0 Da | 4730.6 Da | Pass |
| Purity | HPLC | NLT 98.0 % | 98.6 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 90.8 % | Pass |
| Actual fill | Gravimetric | 10 mg | 11.04 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 3.6 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
RT20 batch 3IG45V3B7MPL
The RT20 batch 3IG45V3B7MPL record is for SKU RT20 (20 mg), certificate number QC-2026-8YS6JRKZ7M, laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), test date 2026-08-24. Summary values: Identity 4731.0 Da; Purity 99.5 %; Weight 23.95 mg; Endotoxin <3 EU/mg.
Recorded tests, each with analyte Retatrutide RT20:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | MS | 4731.4 +/- 1.0 Da | 4731.0 Da | Pass |
| Purity | HPLC | NLT 98.0 % | 99.5 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 92.0 % | Pass |
| Actual fill | Gravimetric | 20 mg | 23.95 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 3.4 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
Nominal catalog size and gravimetric actual fill are different fields. On these three records the actual fill results were 5.49 mg against a 5 mg specification, 11.04 mg against 10 mg, and 23.95 mg against 20 mg. Catalog molecular weight 4731.4 is the listing value; the mass-spectrum results on these batches were 4730.8 Da, 4730.6 Da, and 4731.0 Da against a specification of 4731.4 +/- 1.0 Da.
No published COA for RT15, RT30, RT40, RT50, RT60, RT100, or RT120 is included among the batch records cited here. Absence of a public result is not a pass, a fail, or evidence that those tests were zero or unperformed.
Verify the certificate against the order
Site editorial guidance on how to verify a CertiPeptide COA starts by matching product name, SKU, and batch number. Open the original report and compare its certificate number and test date with the summary. Then use the verification link for that report. A verification page may require an account with the report provider; seeing a link alone does not prove that a report is currently valid.
A practical sequence from that guide:
- Read the product and SKU from the product page or your order documentation.
- Find the batch in Lab Reports. If the allocated batch is not stated, ask support to confirm it.
- 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.
- Follow the report-specific verification link. If the provider requests login or the record cannot be confirmed, resolve that with the provider or support before treating the verification as complete.
The RT10 example on that guide is batch R3Y0BM87SYEP, certificate QC-2026-CMJBJX7R8G, test date 2026-08-24. Those are sample records, not a promise that a future order will receive this batch. The batch page is the source for the current published summary and links.
Do not substitute a report for a similar product or a different size. Send support the SKU, batch number, and the specific difference. A published report does not mean every order receives that batch; confirm the batch allocated to the order separately. If the verification provider requires login, use the provider’s normal access process. The website does not independently confirm the current status of a login-protected record.
Verification checklist
| Check | What “match” means |
|---|---|
| Product name | Retatrutide, not a blend or a different peptide |
| SKU code | Exact code such as RT5, RT10, or RT20 |
| Per-vial size | Nominal mg per vial, not the pack sum |
| Vials per pack | 10 on the listed public variants |
| Batch number | The batch on the document, not another Retatrutide lot |
| Certificate number | The issued report, such as QC-2026-CMJBJX7R8G for the RT10 example |
| Test date and laboratory | Values on that batch page |
| Analyte on each line | For example Retatrutide RT5 versus Retatrutide RT10 |
| Result, unit, and qualifier | Copy the recorded value, including “<” where present |
Use the product page for catalog SKU fields, the matching batch page for recorded results, and support when the allocated batch is unstated or a public report is missing.
Frequently Asked Questions
Does a published Retatrutide report mean every order receives that batch?
No. Confirm the batch allocated to the order separately. Published records are sample certificates for the named batch, not a promise that a future order will receive that batch.
Can an RT5 COA be used as evidence for RT10?
No. A report for RT5 should not be used as evidence for RT10 merely because both say Retatrutide. Match the exact SKU as well as the product name.
How should RT10 packaging of 10 mg × 10 vials be read?
It describes ten vials with a nominal size of 10 mg each. It is not a single vial containing 100 mg. The nominal sum across one pack is 100 mg, which is label arithmetic, not an analytical measurement.
What if a public COA is missing for a listed SKU?
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.
