Research-grade peptides, verified by lot
A supplier built around the paperwork researchers actually need.
PB Peptides exists because too many research-chemical listings ask you to take purity on faith. We publish lot-specific Certificates of Analysis, state specs plainly on every product, and treat compliance as infrastructure, not an afterthought.
Browse catalog
View sample COA
Strictly for laboratory research. Not for human or veterinary use. See full disclaimer below.
About us
PB Peptides supplies synthesized peptide compounds to research labs, universities, and independent researchers. We work with contract manufacturers who provide independent lot testing on every batch, and we publish that data rather than asking customers to take purity on faith.
We’re not a lifestyle brand and we don’t sell finished pharmaceutical products. What we sell are chemical compounds, specified in chemical terms — sequence, purity, molecular weight, storage conditions — for people equipped to work with them in a research setting.
Why researchers choose us
Verified by lot, not by brand
Independent HPLC and mass spectrometry testing on every batch. The COA is linked directly from the product page — not emailed on request, not buried in a PDF elsewhere.
Specs first, marketing second
Every listing states sequence, purity %, molecular weight, and storage conditions up front. If a spec isn’t public, we haven’t shipped it yet.
Compliance treated as a feature
Research Use Disclaimer, age/researcher verification, and shipping restrictions by jurisdiction are built into how the store operates — not a page nobody reads.
Handled like it matters
Insulated, cold-chain packaging on all lyophilized compounds, shipped same or next business day, tracked automatically.