PT-141 × Coastal Peptides — lab test, February 2025
COA 23338 matches Chromate's public record. So this test doesn't rest on our review alone — the lab confirms it too.
STALRY7U5Test results
Not on file for this certificate: endotoxins, sterility and heavy metals. A purity figure says nothing about those.
About this test
Label 10 mg · Lab measured 8.081 mg
81% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 2 mg using the measured mass, against 2.5 mg on the label — 19% 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.
| Report number | 23338 |
|---|---|
| Portal lookup | ✓ Lab-verified |
| PDF vs portal | Chromate's portal shows validity only |
| Submitted via | Peptigrity staff |
| Weight | Counts as one lab test |
Independent HPLC purity analysis of PT-141 from Coastal Peptides, performed by Chromate on February 19, 2025. Reported purity: 99.628%. Net content: 8.081 mg against 10 mg labeled (81% of label). Tested content is 19% below the labeled amount. Batch Red / silver. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of PT-141 from Coastal Peptides
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| PT141-0826A | 19 Aug 2026 | Kovera Labs | 99.408% | 104% | Unverified |
Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.
Have you tested this peptide?
Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.
Community discussion