Quality you can verify.

Zelphalabs sources research peptides from a single accredited manufacturer, batch-tests every lot with an independent HPLC-MS lab, and ships each vial sealed with its matching Certificate of Analysis.

We started Zelphalabs because researchers deserve a supply chain that's honest, documented, and consistent. No rebrands. No mystery reagents. No filler.

How we test

Every incoming batch is sent to a third-party analytical lab for identity, purity, endotoxin and heavy-metals screening. The results are printed on the Certificate of Analysis that ships in every parcel and is available on request against the batch code on your vial.

Compliance

Our products are strictly for in-vitro research and laboratory use. They are not medicines, dietary supplements, or intended for human or veterinary consumption. By purchasing you confirm you are a qualified researcher and agree to our Terms.