Volumes tested
Certificate of Analysis
GHK-Cu
Batch G2426076 · Tested July 29, 2026
✓ Third-party lab tested
Independent laboratory testing confirms purity and composition of this batch.
Sample Summary
Identification and intake details for this tested batch.
Product
GHK-Cu
Volume
100mg
Batch / Lot
G2426076
Accession #
2607290466
Test Date
July 29, 2026
Appearance
Blue Lyophilized Powder
Identity
Confirmed via LC-MS
Purity Analysis
HPLC with UV detection coupled with mass spectrometry (LC-MS)
Purity (HPLC-UV)
99.81%
Identity (LC-MS)
GHK-Cu
Net Peptide Content
106.19 mg
Test Method
HPLC with UV detection coupled with mass spectrometry (LC-MS)
What this test measures
High-performance liquid chromatography with UV detection separates the peptide from related impurities and quantifies each fraction. Mass spectrometry confirms molecular identity by measuring the exact mass-to-charge ratio.
Endotoxin
USP <85>
Result
Cleared
Sensitivity
≤0.05 EU/mL
FD
Freedom Diagnostics
Full Certificate PDF
Signed laboratory-issued PDF with chromatogram and mass confirmation plots.
Test History for GHK-Cu
15 independent lab tests on file for this product.
99.62%
Avg purity · 15 batches
99.00% – 99.90%
Range
7 on file
Endotoxin tests
99.81%
Batch G2426076
· 100mg
Jul 29, 2026 · Purity + Endotoxin
99.82%
Batch A2926076
· 100mg
Jul 29, 2026 · Purity
99.00%
Batch B2826039
· 50mg
Jul 22, 2026 · Purity + Endotoxin
99.58%
Batch I2326039
· 50mg
Jul 6, 2026 · Purity
99.72%
Batch H2426039
· 50mg
Jun 26, 2026 · Purity
99.72%
Batch D1526039
· 50mg
Jun 24, 2026 · Purity + Endotoxin
99.88%
Batch H2126039
· 50mg
Jun 17, 2026 · Purity + Endotoxin
99.50%
Batch E1626076
· 100mg
Jun 17, 2026 · Purity + Endotoxin
99.70%
Batch B2026039
· 50mg
Jun 1, 2026 · Purity
99.65%
Batch G2026076
· 100mg
Jun 1, 2026 · Purity + Endotoxin
99.21%
Batch A1126
· 50mg
Apr 20, 2026 · Purity + Endotoxin
99.60%
Batch B0526
· 50mg
Mar 20, 2026 · Purity
99.77%
Batch B0526
· 50mg
Feb 26, 2026 · Purity
99.41%
Batch 39CBF
· 50mg
Jan 22, 2026 · Purity
99.90%
Batch 39HBE
· 50mg
Aug 25, 2025 · Purity
Frequently Asked Questions
Quick references for what each test means.
What is HPLC-UV purity testing?
High-Performance Liquid Chromatography separates the peptide from related impurities based on how strongly each molecule interacts with a chromatographic column. A UV detector quantifies each separated fraction, and the total peptide peak area divided by all peaks yields the purity percentage.
What does LC-MS confirm?
Liquid Chromatography with Mass Spectrometry confirms the molecular identity of the peptide by measuring its exact mass-to-charge ratio. This verifies the peptide is what it claims to be, not a related molecule with a similar chromatographic profile.
Are all my orders from this exact batch?
Not necessarily. Batches are rotated as inventory moves. Check the batch code on your vial against the test history above to find the matching certificate. Every batch we sell has been independently tested.
Research Use Only
The peptides tested are intended for research use only and are not approved for human or veterinary use, diagnostic, therapeutic, or clinical applications. Results apply only to the specific sample provided and should be interpreted by qualified professionals within the scope of the intended research.
