All GHK-Cu Certificate of Analysis results(2,854 COAs)
TitrateLab · Certificate of Analysis

GHK-Cu 99.9% Purity — XL PeptidesCertificate of Analysis · Independent third-party lab result

Tested purity 99.9% High purity · 99.917%
Dose vs label -5.0% Essentially at label
Evidence URL referenced
Test date
2025-01-29
Testing lab
Janoshik
Batch / lot
Quantity
47.51mg
label 50mg · tested 47.51mg
Endotoxins
Assay method
HPLC + MS
Label dose
50mg
Context

How this result compares

This GHK-Cu certificate's tested purity of 99.92% ranks higher than 83% of the 2825 GHK-Cu certificates with a purity result we have catalogued (median 99.81%).

Tested 2025-01-29 by Janoshik via HPLC + MS. This test is newer than 2% of our catalogued GHK-Cu certificates.

XL Peptides has 8 certificates in our corpus, including 2 for GHK-Cu at a median tested purity of 99.81%.

Manufacturer
XL Peptides
View vendor profile
Source

Janoshik (public)

URL referenced

This entry references an upstream lab URL we crawled. We did not save the artifact, so we can't prove the report still loads as it did when we catalogued it.

Verify on the upstream lab
Method
HPLC + MS
Dose
50mg
Catalogued
2026-06-21
OCR text Raw extracted text

Extracted via OCR. Names, emails, phone numbers, and street addresses are auto-redacted before display.

{
  "peptide": "GHK-Cu",
  "dose": "50mg",
  "purity_pct": 99.917,
  "purity_label": "99.917%",
  "method": "HPLC + MS",
  "test_date": "2025-01-29",
  "client": "XL Peptides",
  "notes": "",
  "label_qty": "50mg",
  "tested_qty": "47.51mg",
  "quantity_deviation_pct": -4.98,
  "is_blend": false,
  "components_json": "",
  "ocr_confidence": 0.98
}
Related

Other GHK-Cu certificates

All GHK-Cu results & stats
This certificate is part of TitrateLab's community-trust corpus. See more from XL Peptides or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →