HomeLab Tests Pure Peptides, GHK-Cu
Purity · passBatch · 2026-01-29 (Vial 2)Shop-provided sample

GHK-Cu × Pure Peptides — Lab Test, February 2026

Tested · submitted by @Frank 👑 Legend
Sample source: shop-provided. The shop chose and sent this vial. Samples bought at retail by a member carry more weight.How we weigh evidence →
HPLC Purity
99.73%
Excellent purity only
↓ Download COA
COA on file — not portal-verified

This lab doesn't publish a public lookup, so we can't confirm the certificate against the lab's own record. The document was reviewed before publication, but it rests on our review alone.

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Test results

6 data points
Purity
99.73%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
100 mg
Tested qty
137.56 mg
Qty match
138% of labeled · +38%
0label125%
Batch / Lot
2026-01-29 (Vial 2)
Tested by
MZ BiolabsView profile →

This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.

About this test

Independent HPLC purity analysis of GHK-Cu from purepeptides.bio, performed by MZ Biolabs on February 10, 2026. Reported purity: 99.73%. Net content: 137.56 mg against 100 mg labeled (138% of label). Tested content exceeds the labeled amount by 38%. Batch 2026-01-29 (Vial 2). Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
HPLC-UV-MS certificate of analysis for GHK-Cu 100mg from Pure Peptides showing 99.73% purity
Issued by MZ Biolabs · Feb 10, 2026 · Batch 2026-01-29 (Vial 2)

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The 669 other GHK-Cu tests on Peptigrity range from 95.76% to 100.00%. This one sits at 99.73%.

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