PrymaLab AnalyticalCertificate of Analysis ยท Lot release ยท tested in-housePrymaLab Analytical ยท Attn: Sample intake ยท 3705 Music Branch Rd ยท Ashland, KY 41102 ยท United States
Certificate number
PL-26-00035
Key
VR6BG3H2
Verify at prymalab.net/testing/verify/
GHK-Cu 50 mg Lot PL-2609-035 ยท analysed September 18, 2026 ยท issued October 3, 2026
Purity ยท RP-HPLC99.81%Specification 99.0% โข main peak at 2.20 min
Identity ยท Observed Mass402.1 DaTheoretical 401.9 Da โข +0.2 Da (498 ppm)
ConclusionPASSMeets every specification for the tests performed
The certificate
Summary
| Compound | GHK-Cu Copper tripeptide-1; Gly-His-Lys ยท Cu(II) |
|---|---|
| CAS number | 89030-95-5 |
| Molecular formula | C14H22CuN6O4 |
| Theoretical mass | 401.9 Da |
| Sequence / structure | H-GHK-OH ยท Cu(II) (1:1 complex; copper bound by the Gly ฮฑ-amine, the GlyโHis amide nitrogen and the His imidazole) |
| Appearance | Blue lyophilized powder |
| Storage | โ20 ยฐC, desiccated, dark |
| Label claim | 50 mg/vial |
| Lot number | PL-2609-035 |
| Certificate number | PL-26-00035 |
| Date of analysis | 2026-09-18 (retest 2028-09-17) |
| Purity (RP-HPLC) | 99.81% |
| Identity (LC-MS) | 402.1 Da |
| Water content (KF) | 1.9% |
| Endotoxin (LAL) | 0.04 EU/mg |
| Sterility | No growth; conforms |
| Conclusion | PASS |
| Tested by | PrymaLab Analytical (PrymaLab's own laboratory, Ashland, KY). In-house result, not an independent third-party test. |
Third-party testing guarantee. Have this product tested by any independent laboratory. If the result does not come back as the compound named on the label, at the purity and amount stated, we refund your order in full and reimburse the cost of the test. Email the lab report and your order number to michael@prymalab.net.
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