To verify a Retatrutide + Tirzepatide Blend listing, match the exact product name and SKU, then read vial size and pack quantity as separate fields, and open only the certificate that names that same SKU and batch. The public catalog lists SKU RET60 at a nominal 60 mg per vial with 10 vials per pack. One published certificate, for batch RLBR18NBBDWY, applies to that SKU only and is not a stand-in for other products, sizes, or unlisted lots.
Listed SKU, vial size, and pack quantity
The Retatrutide + Tirzepatide Blend page records public listed variants only; that is not a claim the list is exhaustive. The listed variant is:
| Field | Listed value |
|---|---|
| Product | Retatrutide + Tirzepatide Blend |
| SKU | RET60 |
| Nominal size per vial | 60 mg |
| Vials per pack | 10 |
Editorial guidance on per-vial size versus pack quantity says to read per-vial size, vials per pack, and pack price as three separate fields. Ten vials at a nominal 60 mg each are not a single combined vial. Multiplying 60 mg by 10 vials is label arithmetic, not an analytical measurement. Actual fill belongs to the particular batch report.
That guide also says, for a blend, to check whether the stated size is combined and to read separate ingredient information. The blend catalog records CAS number, molecular formula, and molecular weight as unknown, and it does not publish a milligram split of each named peptide inside the 60 mg nominal size. Unknown is not zero and is not evidence of absence.
Do not treat the blend as an alias of Retatrutide or Tirzepatide. Those catalogs use different SKU codes, including RT60 and TR60, each listed at 60 mg per vial and 10 vials per pack. Guidance on finding a COA by SKU and batch states that blends are separate products, not interchangeable aliases for their ingredients, and that the complete blend name and SKU should be used.
Batch COA for RET60 (RLBR18NBBDWY)
A SKU identifies a listed variant; a batch number identifies a batch record. A product name alone is not enough when several sizes or batches exist.
The published blend record is batch RLBR18NBBDWY, certificate QC-2026-NZJZH8RD7Z. The laboratory is Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group). The test date is 2026-08-24. The SKU on the certificate is RET60, 60 mg. Scope is published recorded results for this batch only. The record is not evidence of clinical suitability or of every batch. Provider verification links were not independently fetched.
Summary lines on that certificate are Identity Conforms, Purity 99.2 %, Weight 70.09 mg, and Endotoxin <3 EU/mg. Line items, all with analyte Retatrutide + Tirzepatide Blend RET60, are:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | MS | Corresponds to theoretical mass | Conforms | Pass |
| Purity | HPLC | NLT 98.0 % | 99.2 % | Pass |
| Total peptide content | HPLC | NLT 90.0 % | 90.6 % | Pass |
| Actual fill | Gravimetric | 60 mg | 70.09 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 4.8 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
Read each line with the analyte, method, units, qualifiers, and determination shown on the certificate. The 70.09 mg gravimetric fill is a result for this batch; it does not rewrite the catalog's 60 mg nominal size. Mass spectrum is recorded against Corresponds to theoretical mass, not against a published numerical molecular weight for the blend.
This certificate does not list separate retatrutide and tirzepatide rows. Single-ingredient reports should not be used as evidence for RET60.
How to verify identifiers against the original report
How to verify a CertiPeptide COA starts by matching product name, SKU, and batch number. Open the original report and compare certificate number and test date with the summary, then use the verification link for that report. Seeing a link alone does not prove that a report is currently valid. A verification page may require an account with the report provider. The website does not independently confirm the current status of a login-protected record.
Use this sequence:
- Read the product and SKU from the product page or order documentation.
- Find the batch in published 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.
A published report does not mean every order receives that batch. Confirm the batch allocated to the order separately. An older published batch is not evidence of the batch that will be shipped next. If details differ, send support the SKU, batch number, and the specific difference. A screenshot of a certificate is useful for comparison, but the original document and provider record are stronger verification evidence.
If 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.
Verification checklist
- Product name is Retatrutide + Tirzepatide Blend.
- SKU is RET60, not RT60 or TR60.
- Nominal size is 60 mg per vial; pack quantity is 10 vials.
- Pack-sum arithmetic is not treated as a measured fill.
- Batch number, certificate number, test date, laboratory, and SKU match the documents in hand.
- Each COA line is read with its own method, specification, result, unit, and determination.
- The certificate is used only for batch RLBR18NBBDWY / SKU RET60 unless a different matching record is confirmed.
Documented gaps remain: only RET60 is listed among public blend variants; CAS number, molecular formula, and molecular weight remain unknown; no per-peptide milligram split is published; and one batch certificate cannot be generalized to other lots.
Frequently Asked Questions
What SKU, vial size, and pack quantity are listed for the blend?
The public catalog lists SKU RET60 at a nominal 60 mg per vial with 10 vials per pack. That list is public listed variants only and is not a claim that it is exhaustive.
Which published COA matches RET60?
Batch RLBR18NBBDWY, certificate QC-2026-NZJZH8RD7Z, tested 2026-08-24 by Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), names SKU RET60 at 60 mg. Those results apply only to that batch and SKU.
Does a published 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.
Can a Retatrutide or Tirzepatide COA verify the blend?
No. Blends are separate products, not interchangeable aliases for their ingredients. Use the complete blend name and SKU RET60 rather than single-ingredient codes such as RT60 or TR60.
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.
