Public COA library
Every lot. Every test. Public.
Every lot we ship is independently tested by a US third-party lab using HPLC and LC-MS. We publish the COA here. Filter by SKU or paste a lot number from your vial label.
Lots published
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Avg HPLC purity
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Test method
HPLC · LC-MS
| Lot | SKU | Purity | [M+H]+ | Endotoxin | Test date | Lab | COA |
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A COA listing here is a public attestation. If a lot you received does not match the published values, contact research@xfactorpeptidelab.com with the order number and lot. Discrepancies trigger automatic replacement under our refund policy.