Each product is supplied with a Certificate of Analysis (COA) from an independent laboratory. You can find COAs on the product page or on the dedicated COA resource page, or request the COA for your batch.
Lazarus Labs provides two types of COAs. Our 12 branded COAs are fully unredacted and display our brand name, product batch numbers, and all identifiers. Our supplier COAs have certain fields redacted — specifically the supplier name, unique identifier codes, and manufacturer details — to protect our supply chain. In both cases, the core analytical results are fully visible, including purity levels, peptide content, and identity confirmation. On the COA page, we list our own batch number next to each supplier COA so you can match your vial to the correct test report.
What the certificate covers: identity (LC-MS) and purity (HPLC) for single peptides, and the identity and amount of each peptide for blends (no purity percentage is possible for a blend). Endotoxin, heavy-metal, sterility and residual-solvent testing are not currently part of the certificates; endotoxin testing is planned for our next Janoshik round.
To confirm the COA for the specific batch you received, email [email protected] with your order number (LAZ####) and we'll help you verify it.