GHK-Cu × RC Peptides — lab test, October 2025
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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 50 mg · Lab measured 41.69 mg
83% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 10.4 mg using the measured mass, against 12.5 mg on the label — 17% 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 October 10, 2025. Reported purity: 99.902%. Net content: 41.69 mg against 50 mg labeled (83% of label). Tested content is 17% below the labeled amount. Batch 005. 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 |
|---|---|---|---|---|---|
| 011 | 6 May 2026 | Janoshik Labs | 99.004% | 77% | 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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