PGB Sciences supplies research-grade peptides for laboratory and research use — and we’re built on a single rule: independent verification. We don’t ask anyone to take our word for what’s in a vial. Every compound we carry is tested by an independent third-party lab, and we publish every result.
PGB began in 2023 as a community of researchers pooling resources to access quality peptides at fair prices. Today we’ve grown into full-scale wholesale and retail distribution — but the foundation hasn’t changed: fair access, and proof over promises.
We operate on three principles:
Verify independently.
Manufacturer claims and label specs aren’t verification. Every batch is tested by an independent analytical lab the moment it arrives — confirming identity, purity, and mass. Then we go further: we pick a random customer’s order and have it sent straight to the lab, at our expense, to confirm the first result holds. Two independent rounds, an outside lab.
Publish everything.
We designed our process so you don’t have to trust us. Every result is published — each with a code you can scan to confirm it directly from the lab. No selective reporting, no exceptions.
Built by community.
PGB started as researchers pooling resources, and that community still shapes how we operate — our pricing, sourcing, and testing protocols are built around the people we serve. Our roots haven’t changed.