PT-141 × silverstonelabsco peptides — lab test, April 2026
COA KVR-2026-4559E9 matches Kovera Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
BOY13UITest 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 10 mg · Lab measured 11.73 mg
117% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 2.9 mg using the measured mass, against 2.5 mg on the label — 17% 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 | KVR-2026-4559E9 |
|---|---|
| Portal lookup | ✓ Lab-verified |
| Checked | 7 Aug 2026date taken from the record, not from a logged check |
| Checked by | Peptigrity staff, against the lab's portal |
| PDF vs portal | Kovera Labs's portal shows validity only |
| Weight | Counts as one lab test |
Independent HPLC purity analysis of PT-141 from silverstonelabsco peptides, performed by Kovera Labs on April 14, 2026. Reported purity: 99.803%. Net content: 11.73 mg against 10 mg labeled (117% of label). Tested content exceeds the labeled amount by 17%. Endotoxins: PASS (≤0.5 EU/mL). Batch PT-0426. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
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