Certificates
Every batch ships with paperwork you can check
Each production batch is tested before it is listed. Certificates of analysis are published here as batches are finalized — and you can request the current COA for any compound by email before you order.
COA-01
HPLC purity
The certificate of analysis reports chromatographic purity for the specific batch your vial comes from, with the batch code printed on the label so you can match document to product.
COA-02
Identity confirmation
Mass spectrometry confirms the listed compound is what is in the vial. The release document ties the compound, batch record, and test date together.
COA-03
Order-level certification
Optional independent US lab certification can be requested at checkout and is attached to the shipment when complete.
Want the COA before you order?
Email hello@thepeptidelab.xyz with the compound name and we'll reply with the current batch's certificate of analysis. Pseudonymous email addresses are fine — we don't need to know who you are.