Forumshangdong yixin · Shop talk · 8 replies
✓ Purity · passLab has no portalShop-provided sample

GHK-Cu × Excalibur Peptides — lab test, May 2026

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Tested · submitted by Peptigrity Team Member 02PEPTIGRITY TEAM
Sample source: shop-provided. The shop chose and sent this vial. The Trust Score counts it like any other published test; who sourced the vial is shown so you can weigh it yourself.How we weigh evidence →
HPLC Purity
99.6%
✓ Excellent purity only
Counts toward Excalibur Peptides's Trust Score until 18 May 2028
PeptideGHK-Cu
See Excalibur Peptides reviews & all 12 lab tests
↓ 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

7 data points
Purity
99.6%
Endotoxins
Not tested
Sterility
Not on file
Heavy metals
Not tested
Stated qty
50 mg
Tested qty
52.6 mg
Qty match
105% of labeled · +5%
Batch / Lot
85MND23
Container
Clear vial; purple sample, white label, silver crimp, clear plastic cap
Tested by
BTLabsView profile →

Not on file for this certificate: endotoxins, sterility and heavy metals. A purity figure says nothing about those.

About this test

What’s in the vial

Label 50 mg · Lab measured 52.6 mg

105% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 13.2 mg using the measured mass, against 12.5 mg on the label — 5% more.

One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.

Verification trail
Report number85MND23
Portal lookupLab has no portalThis laboratory publishes no public lookup, so the report cannot be confirmed independently.
PDF vs portalBTLabs's portal shows validity only
WeightCounts as one lab test

Independent HPLC purity analysis of GHK-Cu from Excalibur Peptides, performed by BTLabs on May 18, 2026. Reported purity: 99.6%. Net content: 52.6 mg against 50 mg labeled (105% of label). Batch 85MND23. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by BTLabs · May 18, 2026 · Batch 85MND23

Related lab tests

8 tests

The 886 other GHK-Cu tests on Peptigrity range from 95.76% to 100.00%. This one sits at 99.60%.

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