Finnrick - Ensuring a Safer and More Transparent Supply Chain

Free peptides test: now with paid endotoxins contamination option

HK Peptides

HK Peptides

GHK-Cu

Finnrick tested 24 samples of GHK-Cu from HK Peptides between 16 Jul 2025 and 2 Feb 2026. Test scores average below 4 or some scores below 3, and at least 6 tests, warrant a confident Finnrick Rating of E (Bad).

Finnrick Rating™
E
BAD
HK Peptides
GHK-Cu
Tested 24 Samples
Last test 2 Feb 2026

Take Action

Researcher

Request Full Data Access to the Finnrick database of peptide tests.

Free peptide testing

Mail in a sample (US only) to get confidence for the specific vials you have, and contribute to identifying unsafe supply chains, so other people can avoid risky and costly mistakes.

Test My Sample

Other GHK-Cu tests from top-rated vendors:

Xingruida XDR
A
Shanghai Sigma Audley SSA
A
Peptidology
A

All GHK-Cu tests from HK Peptides

Samples are tested in commercial labs

Tests Count

24

Scores

AVG6.3MIN2.0MAX10.0

Last

2 Feb 2026

First

16 Jul 2025
Quantity
Test DateCertificate
Test Score
LabelTestedDifferencePurityEndotoxinsBatch IDContainerTested AtSent By
2 Feb 2026View8.050mg49.2mg-1.6%99.90%n/a(no batch ID)No Label / Silver Crimp / White CapLab EPublic
2 Feb 2026View6.650mg54.8mg+9.6%99.90%n/a(no batch ID)No Label / Silver Crimp / White CapLab EPublic
26 Jan 2026View4.950mg62.9mg+25.8%99.90%n/a(no batch ID)No Label / Copper Crimp / Clear CapLab EPublic
26 Jan 2026View5.650mg42.4mg-15.2%99.90%n/a(no batch ID)White Label / Silver Crimp / White CapLab EPublic
26 Jan 2026View6.6100mg155mg+55.0%99.90%n/aCU 100White Label / Silver Crimp / Clear CapLab EPublic
19 Jan 2026View7.050mg54mg+8.0%99.95%n/a(no batch ID)White Label / Silver Crimp / White Cap Lab EPublic
19 Jan 2026View5.650mg42.2mg-15.6%99.95%n/a(no batch ID)No Label / Silver Crimp / Blue CapLab EPublic
19 Jan 2026View10.050mg47.9mg-4.2%99.95%n/acu50No Label / Silver Crimp / White CapLab EPublic
19 Jan 2026View7.3100mg92.9mg-7.1%99.95%n/a(no batch ID)Green Label / Silver Crimp / Blue CapLab EPublic
6 Jan 2026View7.550mg50.5mg+1.0%99.71%n/a(no batch ID)No Label / Copper Crimp / Clear Cap Lab EPublic
6 Jan 2026View9.050mg52mg+4.0%99.95%n/aCU50CLEAR102025Silver Label / Copper Crimp / Clear Cap Lab EPublic
17 Dec 2025View5.650mg57.7mg+15.4%99.95%n/a(no batch ID)No Label / Copper Crimp / Clear CapLab EPublic
17 Dec 2025View7.0100mg108mg+8.0%99.95%n/a(no batch ID)No Label / Silver Crimp / Blue CapLab EPublic
17 Dec 2025View5.0100mg122mg+22.0%99.95%n/a(no batch ID)No Label / Silver Crimp / Clear CapLab EPublic
6 Dec 2025View5.250mg58.7mg+17.4%99.84%n/a(no batch ID)Gray Label / Copper Crimp / Clear CapLab EPublic
17 Nov 2025View7.150mg53.8mg+7.6%99.95%n/a(no batch ID)No Label / Copper Crimp / Clear CapLab EPublic
6 Nov 2025View2.050mg
⚠️ Sample does not contain GHK-Cu
n/aAugust Blue CapNo Label / Silver Crimp / Blue CapLab EPublic
23 Oct 2025View7.150mg48.8mg-2.4%99.52%n/a(no batch ID)White Label / Silver Crimp / Clear Teal Cap Lab EPublic
21 Oct 2025View7.350mg53.6mg+7.2%99.95%n/a(no batch ID)No Label / Silver Crimp / White Cap Lab EPublic
18 Sep 2025View6.150mg55.4mg+10.8%99.80%n/a(no batch ID)No Label / Copper Crimp / Clear Cap Lab EPublic
4 Aug 2025View4.850mg69.77mg+39.5%99.99%n/a(no batch ID)No Label / Copper Crimp / Clear CapLab DFinnrick
4 Aug 2025View5.550mg56.9mg+13.8%99.79%
below LOQ
(no batch ID)No Label / Copper Crimp / Clear CapLab EFinnrick
4 Aug 2025View5.350mg58.4mg+16.8%99.87%n/a(no batch ID)No Label / Copper Crimp / Clear CapLab EFinnrick
16 Jul 2025View5.4100mg83.76mg-16.2%99.89%n/a(no batch ID)White Label / Silver Crimp / Blue CapLab FPublic
Test My Sample