GHK-Cu Caps 2 mg 60ct Lot GHK2-001C: Certificate of Analysis (COA)
Peptira · tested Jan 31, 2026 by Freedom Diagnostics · Most recent COA Discontinued product
This page summarizes the third-party lab report for lot GHK2-001C of GHK-Cu Caps 2 mg 60ct sold by Peptira. The lot number on this page should match the lot printed on the vial label. Don't rely on this summary alone: use the button to open the lab's own record and compare the lot, date and results.
GHK-Cu Caps 2 mg 60ct lot GHK2-001C test results, explained
Every result printed on this certificate, as reported by Freedom Diagnostics, with a plain-English note on what the test measures. "Pass" and "specification" wording comes from the certificate; where the lab prints no pass/fail, we say so.
| Test | Result on the certificate | What it measures | This lot |
|---|---|---|---|
| HPLC purity | Not reported | HPLC separates the sample into its components; purity is the share of the detected signal that sits in the main peak. On its own it doesn't show which molecule that peak is. That's what the identity test is for. | Not reported on this certificate |
| Identity (LC-MS) | Mass identified as GHK-Cu | Mass spectrometry measures the molecular mass of what's in the vial and compares it with the declared compound. "Confirmed" means the lab found the expected compound. Expected average molecular weight of GHK-Cu (PubChem): 340.38 g/mol. The observed mass appears in the certificate's chart and isn't transcribed here. | Reported as matching the declared compound |
| Endotoxin | Pass | Bacterial endotoxins are fragments of bacterial cell walls. The LAL assay measures them in endotoxin units (EU/mL); a pass means the result was under the lab's limit. | Pass (as reported by the lab) |
Lot and report details
| Lot / batch number | GHK2-001C |
|---|---|
| Product (as labeled by vendor) | GHK-Cu Caps 2 mg 60ct |
| Labeled vial size | 2 mg |
| Testing laboratory | Freedom Diagnostics |
| Sample received by lab | Jan 29, 2026 |
| Report date | Jan 31, 2026 |
| Method (as stated) | HPLC with UV detection coupled with mass spectrometry (LC-MS) |
| Search Code | Not printed / not found |
| Lab-record check | Not checked |
| Vendor | Peptira |
| Verify | Open Freedom Diagnostics's record ↗ |
Data notes: Lab received 01/29/2026, reported 1/31/2026 (MM/DD/YYYY).
The certificate itself
About Freedom Diagnostics
A peptide testing lab in Franklin, Tennessee (per the lab's website) that publishes its certificates in a searchable online database.
Accreditation: No accreditation is printed on these certificates, and we found no published ISO/IEC 17025 accreditation for the lab (checked Oct 7, 2026).
Tests: On the certificates here: HPLC purity with LC-MS identity, net content and, where ordered, endotoxin (LAL), a microbial PCR screen and other screens.
How to verify: Search the Search Code on freedomdiagnosticstesting.com. The lab hosts its own PDF copy of each certificate, which should match the vendor's copy.
Open Freedom Diagnostics's record ↗Lab info from: freedomdiagnosticstesting.com · checked Oct 7, 2026.
Compound reference: GHK-Cu
- Also called
- copper tripeptide-1; glycyl-L-histidyl-L-lysine copper(II); prezatide copper
- Sequence
- GHK (3 residues)
- Formula
- C14H24N6O4
- Mol. weight
- 340.38 g/mol
- Source
- PubChem CID 73587 ↗
The tripeptide Gly-His-Lys bound to copper(II). PubChem has several records for the copper complex; the formula and weight shown are for the GHK peptide itself (CID 73587). Reference data only; it describes the molecule, not any use of it. For laboratory research use only.
Also available from Paramount Peptides
GHK-Cu is also carried by Paramount Peptides, our other tested supplier. These are the most recent GHK-Cu certificates we have from them; each links to its own lot page.
| Product | Lot | Report date | Lab | HPLC purity |
|---|---|---|---|---|
| GHK-Cu (100mg) | GHK100N061526 | Jul 6, 2026 | Accumark Labs | 99.98% |
| GHK-Cu (50mg) | GHK50N061326 | Jun 26, 2026 | Accumark Labs | 99.74% |
| GHK-Cu (100mg) | GHK100N101625 | Nov 3, 2025 | Janoshik | 99.59% |
| GHK-Cu (50mg) | GHK50N101625 | Oct 29, 2025 | Janoshik | 99.56% |
| GHK-Cu (50mg) | GHK50A061025 | Jun 19, 2025 | Janoshik | 99.94% |
Where to get lab-tested GHK-Cu: products, sizes and latest COAs →
What to check on your vial
- The lot number on the vial label reads GHK2-001C, character for character.
- The product name and vial size on the label match GHK-Cu Caps 2 mg 60ct (2 mg).
- The lab's own record (freedomdiagnosticstesting.com, code Not printed / not found) shows the same lot, report date (Jan 31, 2026) and results as this page.
- The report date is a date you'd expect for your purchase: a much older certificate may belong to an earlier lot.
- The identity line names the compound you expect. If it's "Not reported", the certificate doesn't confirm which molecule is in the vial.
- The certificate is a clean document: no mismatched fonts, edited numbers or a missing verification code.
How to check this COA in under a minute
- Find the lot number on your vial label and confirm it reads GHK2-001C.
- Open Freedom Diagnostics's record with the button above, or go to freedomdiagnosticstesting.com and enter Not printed / not found.
- Compare the lot number, test date, purity and identity result with the table above. They should be identical.
- New to COAs? Read How to read a peptide COA for what HPLC purity and mass spec identity mean.
Questions about lot GHK2-001C
Does the COA for GHK-Cu Caps 2 mg 60ct lot GHK2-001C report HPLC purity?
No. The Freedom Diagnostics certificate for lot GHK2-001C (dated Jan 31, 2026) doesn't print an HPLC purity figure; the results it does report are listed above.
How do I verify the COA for lot GHK2-001C?
Go to freedomdiagnosticstesting.com and enter the search code Not printed / not found. The lab's own record should show lot GHK2-001C with the same dates and results as this page.
Is lot GHK2-001C the newest GHK-Cu Caps 2 mg 60ct lot from Peptira?
It's the most recent GHK-Cu Caps 2 mg 60ct certificate we have on file from Peptira as of Oct 8, 2026. Vendors can ship a newer lot before its certificate is posted, so check your vial label.
Does this certificate apply to my vial?
Only if the lot number printed on your vial reads GHK2-001C exactly. A certificate of analysis covers one lot; it says nothing about other lots of the same product.
Other lots and COAs
Affiliate disclosure: We earn a commission if you buy through the vendor links on this page, at no extra cost to you. Peptides & Coffee is an independent COA reference and is not owned by or affiliated with the vendors or labs listed. Lab results are published by the vendors and labs; we link to each lab's own verification record so you can check them yourself. Stock and lots change: the vendor may be shipping a newer lot than the one on this page, so check your vial label.