COA 164180 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
GHNZXIDZ2G8PThis is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
Label 50 mg · Lab measured 74.63 mg
149% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 18.7 mg using the measured mass, against 12.5 mg on the label — 49% 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.
| Report number | 164180 |
|---|---|
| Portal lookup | ✓ Lab-verified |
| PDF vs portal | Janoshik Labs's portal shows validity only |
| Weight | Counts as one lab test |
Independent HPLC purity analysis of GHK-Cu from drakonpeptides.com, performed by Janoshik Labs on May 14, 2026. Reported purity: 99.359%. Net content: 74.63 mg against 50 mg labeled (149% of label). Tested content exceeds the labeled amount by 49%. Heavy metals: As not detected; Cd not detected; Pb not detected; Hg: not detected. Batch DRK-GHK-MAY26. Sample source: shop-provided. Certificate of analysis attached.



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