All GHK-Cu Certificate of Analysis results— 2462 COAs
TitrateLab · Certificate of Analysis

GHK-Cu 100.0% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result

Tested purity 100.0% High purity · 99.987%
Dose vs label +13.9% Over the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

Janoshik tested this GHK-Cu at 99.987% purity via HPLC. The tested quantity of 85.42mg showed a significant deviation of +13.89% from the 75mg label. Endotoxin status is unknown, and the test is stale (over a year old). Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • stale (1+ years old)
  • quantity deviation (+13.89%)
Test date
2024-11-29
Testing lab
Janoshik
Batch / lot
Quantity
85.42mg
label 75mg · tested 85.42mg
Endotoxins
Assay method
HPLC
Label dose
75mg
Context

How this result compares

This GHK-Cu certificate's tested purity of 99.99% ranks higher than 99% of the 2433 GHK-Cu certificates with a purity result we have catalogued (median 99.82%).

Tested 2024-11-29 by Janoshik via HPLC. This test is newer than 1% of our catalogued GHK-Cu certificates.

Qingdao Sigma Chemical has 510 certificates in our corpus, including 14 for GHK-Cu at a median tested purity of 99.85%.

Manufacturer
Qingdao Sigma Chemical
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Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Janoshik (public)

Artifact captured

We have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.

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Method
HPLC
Dose
75mg
Catalogued
2026-04-24
Artifact hash
05126470762c9be5…
OCR text Raw extracted text

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

{"peptide": "GHK-Cu", "dose": "75mg", "purity_pct": 99.987, "purity_label": "99.987%", "method": "HPLC", "test_date": "2024-11-29", "client": "Qingdao Sigma Chemical Co., ltd", "notes": "", "label_qty": "75mg", "tested_qty": "85.42mg", "quantity_deviation_pct": 13.89, "is_blend": false, "components_json": "", "ocr_confidence": 0.98}
Related

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This certificate is part of TitrateLab's community-trust corpus. See more from Qingdao Sigma Chemical or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →