Finnrick - Ensuring a Safer and More Transparent Supply Chain

GHK-Cu

We've tested 87 samples of GHK-Cu sourced from 24 vendors between 22 Apr 2025 and 10 Sep 2025. Purity varies from 99.32% to 99.99%, and quantity can diverge by up to +/-120% vs advertised value.

Finnrick Top 3™ - 12 Sep 2025
GHK-Cu
1
Peptide-S
A
GREAT
2
Peptidology
A
GREAT
3
Qing Li Peptide
B
GOOD

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Vendors

Tests
Vendor
Rating
CountAvgMinMaxOldestMost Recent
Peptide-SPeptide-S
A
Great
68.06.210.016 Jul 202521 Aug 2025
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
Accelerate LabsAccelerate Labs
A
Great
27.27.27.210 Jul 202510 Jul 2025
Nuscience PeptidesNuscience Peptides
A
Great
27.27.27.26 May 20256 May 2025
Shanghai Sigma Audley SSAShanghai Sigma Audley SSA
A
Great
38.37.29.84 Aug 202514 Aug 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
Qing Li PeptideQing Li Peptide
B
Good
108.05.910.010 Jul 20254 Sep 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
46.25.08.016 Jul 20254 Sep 2025
HK PeptidesHK Peptides
C
Okay
45.34.85.516 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
SRY LabsSRY Labs
E
Bad
33.42.64.010 Sep 202510 Sep 2025
Nanjing Xiyuxun Technology XYXNanjing Xiyuxun Technology XYX
X
Unrated
19.89.89.816 Jul 202516 Jul 2025
ZLZ PeptideZLZ Peptide
X
Unrated
16.56.56.54 Aug 20254 Aug 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
LabelTestedDifferencePurityBatch IDContainerTested AtSent By
10 Sep 2025SRY LabsView2.650mg106.000mg+112.0%99.32%(no batch ID)No Label / Silver Crimp / Blue Cap Lab EPublic
10 Sep 2025SRY LabsView4.050mg102.000mg+104.0%99.95%(no batch ID)No Label / Silver Crimp / Blue Cap Lab EPublic
10 Sep 2025SRY LabsView3.650mg110.000mg+120.0%99.75%(no batch ID)No Label / Silver Crimp / Blue Cap Lab EPublic
4 Sep 2025Reta-PeptideView8.050mg48.600mg-2.8%99.95%(no batch ID)Clear Label / Silver Crimp / Blue CapLab EPublic
4 Sep 2025Qing Li PeptideView8.050mg47.700mg-4.6%99.95%(no batch ID)Purple Label / Silver Crimp / Blue CapLab EPublic
21 Aug 2025Peptide-SView6.250mg44.400mg-11.2%99.92%(no batch ID)White Label / Silver Crimp / Purple CapLab EPublic
21 Aug 2025Qing Li PeptideView8.750mg54.700mg+9.4%99.94%June 2nd Batch # 1No Label / Silver Crimp / Blue CapLab EPublic

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.