GHK-Cu × utherpeptide.com — Lab Test, October 2025
COA #84555 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
HP4TKIPGYX9ZTest 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 128.32 mg
128% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 32.1 mg using the measured mass, against 25 mg on the label — 28% 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 | #84555 |
|---|---|
| Portal lookup | ✓ Lab-verified |
| Checked | 24 Jul 2026date taken from the record, not from a logged check |
| Checked by | Peptigrity staff, against the lab's portal |
| PDF vs portal | Janoshik Labs's portal shows validity only |
| Weight | Counts as one lab test |
Independent HPLC purity analysis of GHK-Cu from utherpeptide.com, performed by Janoshik Labs on October 27, 2025. Reported purity: 99.834%. Net content: 128.32 mg against 100 mg labeled (128% of label). Tested content exceeds the labeled amount by 28%. Batch Hk1001009. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of GHK-Cu from utherpeptide.com
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| HK500917 | 25 Sept 2025 | Janoshik Labs | 99.934% | 108% | ✓ Lab-verified |
| HK1000916 | 25 Sept 2025 | Janoshik Labs | 99.852% | 109% | ✓ Lab-verified |
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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