GHK-Cu × RC Peptides — lab test, May 2026
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Test results
Not on file for this certificate: endotoxins, sterility and heavy metals. A purity figure says nothing about those.
About this test
Label 100 mg · Lab measured 77.11 mg
77% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 19.3 mg using the measured mass, against 25 mg on the label — 23% less.
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.
Independent HPLC purity analysis of GHK-Cu from RC Peptides, performed by Janoshik Labs on May 6, 2026. Reported purity: 99.004%. Net content: 77.11 mg against 100 mg labeled (77% of label). Tested content is 23% below the labeled amount. Batch 011. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of GHK-Cu from RC Peptides
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| 005 | 10 Oct 2025 | Janoshik Labs | 99.902% | 83% | Unverified |
Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.
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