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GHK-Cu

We've tested 77 samples of GHK-Cu sourced from 22 vendors between 22 Apr 2025 and 12 Aug 2025. Purity varies from 65.57% to 99.99%, and quantity can diverge by up to +/-89% vs advertised value.

Finnrick Top 3™ - 15 Aug 2025
GHK-Cu
1
Peptidology
A
GREAT
2
Qing Li Peptide
B
GOOD

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Vendors

Tests
Vendor
Rating
CountAvgMinMaxOldestMost Recent
PeptidologyPeptidology
A
Great
67.46.29.014 Jun 202511 Aug 2025
Pharma Grade PeptidesPharma Grade Peptides
A
Great
210.010.010.06 May 20256 May 2025
Peptide SciencesPeptide Sciences
A
Great
48.87.79.86 May 202520 May 2025
Atomik LabzAtomik Labz
A
Great
48.77.69.86 May 202520 May 2025
Nuscience PeptidesNuscience Peptides
A
Great
27.27.27.26 May 20256 May 2025
Accelerate LabsAccelerate Labs
A
Great
27.27.27.210 Jul 202510 Jul 2025
Precision Peptide CoPrecision Peptide Co
A
Great
48.06.99.06 May 202510 Jul 2025
Biolongevity LabsBiolongevity Labs
A
Great
37.26.87.914 Jun 202510 Jul 2025
ScienceScience
A
Great
47.26.57.620 May 202510 Jul 2025
Peptide-SPeptide-S
A
Great
58.36.510.016 Jul 20254 Aug 2025
Qing Li PeptideQing Li Peptide
B
Good
77.65.98.810 Jul 20254 Aug 2025
Zhejiang Yichenkang BiotechnologyZhejiang Yichenkang Biotechnology
B
Good
26.35.86.810 Jul 202510 Jul 2025
Tianjin Finder Chemical TFCTianjin Finder Chemical TFC
B
Good
47.15.78.716 Jul 20254 Aug 2025
Reta-PeptideReta-Peptide
C
Okay
35.65.06.516 Jul 20254 Aug 2025
HK PeptidesHK Peptides
C
Okay
35.24.85.416 Jul 20254 Aug 2025
Peptides 4 ResearchPeptides 4 Research
C
Okay
45.04.85.26 May 202520 May 2025
PeptiLab ResearchPeptiLab Research
C
Okay
35.94.87.825 Apr 20256 May 2025
Prime PeptidesPrime Peptides
C
Okay
55.14.75.520 May 202510 Jul 2025
Suaway Lab ResearchSuaway Lab Research
D
Poor
54.94.65.422 Apr 202510 Jul 2025
Shanghai Sigma Audley SSAShanghai Sigma Audley SSA
E
Bad
36.11.49.84 Aug 202512 Aug 2025
Nanjing Xiyuxun Technology XYXNanjing Xiyuxun Technology XYX
X
Unrated
19.89.89.816 Jul 202516 Jul 2025
Planet PeptidePlanet Peptide
X
Unrated
15.55.55.520 May 202520 May 2025

Most recent GHK-Cu tests

Samples are tested in commercial labs

Quantity
Test DateVendorCertificate
Test Score
Label
Batch
TestedDifferencePurityBatch IDContainerTested AtSent By
12 Aug 2025Shanghai Sigma Audley SSAView7.250mg(no batch claim)53.200mg+6.4%99.77%(no batch ID)No Label / Silver Crimp / Clear Teal CapLab EPublic
11 Aug 2025PeptidologyView7.450mg
53.2mg
47.700mg-10.3%99.95%01-029-PDWhite, Blue Label / Gold Crimp / Clear CapLab EFinnrick
11 Aug 2025PeptidologyView6.950mg
53.2mg
46.500mg-12.5%99.95%01-029-PDWhite, Blue Label / Gold Crimp / Clear CapLab EFinnrick
4 Aug 2025HK PeptidesView4.850mg(no batch claim)69.770mg+39.5%99.99%(no batch ID)No Label / Copper Crimp / Clear CapLab DFinnrick
4 Aug 2025HK PeptidesView5.350mg(no batch claim)58.400mg+16.8%99.87%(no batch ID)No Label / Copper Crimp / Clear CapLab EFinnrick
4 Aug 2025Qing Li PeptideView7.850mg(no batch claim)50.700mg+1.4%99.81%(no batch ID)White Label / Silver Crimp / Blue CapLab EPublic
4 Aug 2025Peptide-SView10.050mg(no batch claim)49.500mg-1.0%99.89%Jun 2, 2025No Label / Silver Crimp / Blue Cap Lab EFinnrick

Corrections

31 Jul 2025: Peptidology
Peptidology ratings for GHK-Cu were updated from B to A, after taking into account the Batch IDs that are included on vials, but were initially not identified by Finnrick.
10 Jul 2025:
Lab E tests published 10 Jul 2025: change in testing and analysis methodology on 15 GHK-Cu tests previously published in May and June. New COAs were issued by the lab, and test scores have been updated.