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GHK-Cu 50 mg vial, lot GH-692, photographed by the laboratory
The sample as received and photographed by Janoshik Analytical. Photo PDF

COA, lot GH-692

GHK-Cu 50 mg

Tested by Janoshik Analytical. Sample received 13 Apr 2026, analysed 15 to 28 Apr 2026. Product page

GHK-Cu 50 mg

LOT GH-692

99.680%Purity, HPLC
Label50 mg
GHK content45.30 mg
not compared
Contaminants
None significant
Endotoxin
2.136 EU per vial
Heavy metals
Not detected
Sterility
Pass
Tested 15 to 28 Apr 2026Open COA

The lab measured the GHK content (without the copper), so it is not compared with the 50 mg on the label.

Label on the photographed vial: LOT: GH692 matches this lot.

Reports in this COA

Values as printed by the laboratory. Janoshik titles each document Test Report; many buyers call it a COA. Check at Janoshik opens the lab's own copy.

Content and purity

Method: HPLC
Tests requested: “GHK (or GHK-Cu) analysis”

GHK-Cu (GHK content)45.30 mg
Purity99.680%

Task #137344Received 13 Apr 2026Analysed 15 Apr 2026Key LS7XAYM8WLRJ

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Contaminant screening

Method: LC-MS and GC-MS
Tests requested: “GCMS/LCMS screening for contamination”

Lab comment: LCMS analysis identified the presence of mannitol, GHK(-Cu), and degradation products. LCMS spectra are attached. No significant contamination detected.

Task #137345Received 13 Apr 2026Analysed 16 Apr 2026Key QUJZTHBUZN9E

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Bacterial endotoxin

Method: Endotoxin assay
Tests requested: “Endotoxin analysis (separate vial preferred; measurement up to 10 EU/vial)”

Endotoxin2.136 EU per vial

Task #137346Received 13 Apr 2026Analysed 17 Apr 2026Key ER8Z6K5EDVIH

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Heavy metals

Method: Arsenic, cadmium, lead and mercury
Tests requested: “Heavy metals screening (As, Cd, Pb, Hg) - as add-on to another test”

Asnot detected
Cdnot detected
Pbnot detected
Hgnot detected

Task #137348Received 13 Apr 2026Analysed 15 Apr 2026Key ALGZ5TAFRFRQ

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Sterility

Method: TAMC and TYMC (bacteria, and yeasts and moulds)
Tests requested: “Sterility testing (TAMC+TYMC)”

TAMCPASS
TYMCPASS

Task #137347Received 13 Apr 2026Analysed 28 Apr 2026Key J1SBB1FLCZSK

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