GHK-Cu × royal-peptides.com — lab test, August 2025
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Test results
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
Label 100 mg · Lab measured 135.73 mg
136% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 33.9 mg using the measured mass, against 25 mg on the label — 36% 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.
Independent HPLC purity analysis of GHK-Cu from royal-peptides.com, performed by Janoshik Labs on August 25, 2025. Reported purity: 99.961%. Net content: 135.73 mg against 100 mg labeled (136% of label). Tested content exceeds the labeled amount by 36%. Batch HK1000818. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of GHK-Cu from royal-peptides.com
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| 20251201 | 30 Dec 2025 | Janoshik Labs | 99.475% | 98% | Unverified |
| 635966 | 1 Oct 2025 | Janoshik Labs | 99.915% | 117% | Unverified |
| HK500802 | 21 Aug 2025 | Janoshik Labs | 99.972% | 144% | 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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