GHK-Cu checks rest on matching identifiers, not on the compound name alone. Confirm the listed SKU, the nominal milligrams in each vial, and the number of vials in the pack, then open the certificate of analysis (COA) that names that same SKU and batch. Catalog size is not the same field as a batch gravimetric fill, and a report for one size is not evidence for another.
Listed SKUs, vial size and pack quantity
The public GHK-Cu product listing records name GHK-Cu, CAS number 89030-95-5, molecular formula C14H24N6O4Cu, and molecular weight 403.9. Two public listed variants appear: SKU CU50, nominal size 50 mg per vial, 10 vials per pack; and SKU CU100, nominal size 100 mg per vial, 10 vials per pack. The listing SKU scope is public listed variants only, at most 40, and is not a claim that the list is exhaustive.
Per-vial size versus pack quantity is site editorial guidance, not independent scientific evidence. It treats per-vial size, vials per pack, and pack price as three separate fields. A label such as 10 mg x 10 vials means ten vials with a nominal size of 10 mg each; it is not a single vial containing 100 mg. Applied here, CU50 is ten vials at 50 mg each and CU100 is ten vials at 100 mg each. The sum across one pack is label arithmetic, not an analytical measurement. Actual fill and peptide-content measurements belong to the particular batch report.
| Field | CU50 | CU100 |
|---|---|---|
| Product | GHK-Cu | GHK-Cu |
| SKU | CU50 | CU100 |
| Nominal size per vial | 50 mg | 100 mg |
| Vials per pack | 10 | 10 |
| Nominal sum across one pack | 500 mg | 1000 mg |
Selecting a different SKU can change pack price and available stock. Match the exact product and SKU, per-vial size and unit, vials per pack, pack count, and matching batch records before ordering. If a quotation uses a different packaging description, ask support to reconcile it.
Batch COAs: match SKU, batch and certificate
Finding a COA by SKU and batch is site editorial guidance. A SKU identifies a listed product variant; a batch number identifies a batch record. Use both. A product name by itself is not enough when several sizes or batches exist. Do not use a CU50 report as evidence for CU100 merely because both say GHK-Cu. An older published batch is not evidence of the batch that will be shipped next. A missing public result is not a failed test and is not a passed test; ask support for the exact SKU and batch rather than substituting a different batch.
CU50 example. GHK-Cu batch UU1YF3LF486G records batch UU1YF3LF486G, certificate QC-2026-83WLFPNZ5Q, laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), test date 2026-08-15, and SKU CU50 at 50 mg. Tests for analyte GHK-Cu CU50:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | Blue loose powder | Blue loose powder | Pass |
| Mass spectrum | MS | 403.9 +/- 1.0 Da | 403.2 Da | Pass |
| Purity | HPLC | NLT 98.0 % | 98.9 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 91.3 % | Pass |
| Actual fill | Gravimetric | 50 mg | 54.32 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 3.2 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
The same page lists Identity 403.2 Da, Purity 98.9 %, Weight 54.32 mg, and Endotoxin <3 EU/mg as passed summaries.
CU100 example. GHK-Cu batch B7SHB59AQC95 records batch B7SHB59AQC95, certificate QC-2026-LZNYLVUA97, laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), test date 2026-08-15, and SKU CU100 at 100 mg. Tests for analyte GHK-Cu CU100:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | Blue loose powder | Blue loose powder | Pass |
| Mass spectrum | MS | 403.9 +/- 1.0 Da | 403.4 Da | Pass |
| Purity | HPLC | NLT 98.0 % | 99.5 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 93.0 % | Pass |
| Actual fill | Gravimetric | 100 mg | 105.12 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 4.6 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
The same page lists Identity 403.4 Da, Purity 99.5 %, Weight 105.12 mg, and Endotoxin <3 EU/mg as passed summaries.
Both records state they are published results for that batch only, that provider verification links were not independently fetched, and that they are not evidence of clinical suitability or every batch.
Completing the verification sequence
How to verify a CertiPeptide COA is site editorial guidance. Start 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.
- Read the product and SKU from the product page or order documentation.
- Find the batch. If the allocated batch is not stated, ask support to confirm it.
- Open the batch page and check certificate number, sample identity, test date and listed laboratory.
- Open the original report and compare 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 verification as complete.
Do not substitute a report for a similar product or a different size. Send support the SKU, batch number and the specific difference. A screenshot is useful for comparison, but the original document and provider record are stronger evidence. If a previously shared report link is no longer available, ask support for current documentation rather than substituting a different batch.
Checklist
- Product name is GHK-Cu.
- SKU is the listed CU50 or CU100 code.
- Per-vial size (50 mg or 100 mg) and 10 vials per pack are read as separate fields.
- Batch number and certificate number match the opened record.
- Analyte text names GHK-Cu CU50 or GHK-Cu CU100 as applicable.
- Methods, units, and qualifiers (NLT, NMT, <, +/-) are preserved exactly.
- Gravimetric actual fill is not treated as catalog nominal size; peptide content is not treated as HPLC purity.
- Catalog molecular weight 403.9 is not substituted for the mass-spectrum result (403.2 Da on UU1YF3LF486G; 403.4 Da on B7SHB59AQC95).
- The published example batch is not assumed to be the batch allocated to a later order.
Frequently Asked Questions
Can a CU50 GHK-Cu COA be used as evidence for CU100?
No. A report for one size should not be used as evidence for another size merely because both say GHK-Cu. Match the SKU on the COA (CU50 or CU100) to the listed variant.
Does a published GHK-Cu 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 GHK-Cu COA is missing from the public pages?
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.
How should CU50 and CU100 pack quantities be read?
Both listed SKUs are published as 10 vials per pack. Read per-vial size and vials per pack as separate fields. CU50 is ten vials at a nominal 50 mg each; CU100 is ten vials at a nominal 100 mg each. The pack sum is label arithmetic, not an analytical measurement.
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.
