Lab reports
Each vial is marked with a lot number. Locate it below to access the original reports for that batch. If your lot is absent, reach out to us before using the product.
Certificate of Analysis 99.69% purity (HPLC) View report → Endotoxin (USP 85) Not detected View report → Sterility (USP 71) No growth detected View report → Heavy metals (USP 233) Pass View report → Single report file: all four outcomes are parts of a single COA. Net peptide content 20.61 mg per 20 mg vial, identity validated by HPLC retention-time match, fentanyl screen negative.
Every batch is verified via MS to match the expected molecular weight of retatrutide (~4845 Da). We do not release a batch based solely on purity.
Reverse-phase HPLC with a release specification of 98% or higher. The exact value for the current batch is shown above and on the COA.
LAL endotoxin testing on each batch, with results published alongside the COA. Sterile-filled vials undergo additional bioburden testing.
Every vial carries a lot number and an expiration date. The lot number connects to its COA, endotoxin report, and testing date. If you receive a vial whose lot is not listed on this site, contact us before use.
Testing is performed by independent analytical labs that have no commercial ties to our suppliers. Lab names are listed on each COA.
The certificate specifies the lab, the lot, the test date, and the methods. HPLC shows the purity percentage; mass spectrometry confirms the molecule matches retatrutide (~4845 Da); the LAL assay reports endotoxin in EU/mL. See the research-peptide vendors guide for the meaning of each value.
