About Vendors COMPP

Our Story

Vendors COMPP was founded by a team of peptide chemists who spent their careers inside synthesis laboratories — designing sequences, running couplings, troubleshooting difficult aggregating stretches and reading thousands of HPLC chromatograms. Over the years we noticed the same pattern in the market: researchers increasingly struggled to distinguish peptide companies that operate real laboratories from resellers that simply repackage material of unknown provenance. The rise of grey-market peptide vendors, unverified review platforms and “lab tested” claims without documentation made vendor selection a research project of its own.

We built hxnetpeptide.com to be the opposite of that: a peptide supplier where every claim is tied to a method, every vial is tied to a batch number, and every Certificate of Analysis includes the analytical data a working scientist expects. Today Vendors COMPP serves pharmaceutical R&D groups, university laboratories, contract research organizations and cosmetic-science formulators across more than 40 countries.

What We Do

Our core business is peptide chemistry. That includes custom peptide synthesis from milligram to multi-gram scale, an extensive catalog of research peptide products, peptide modification and labeling services, and preparative purification to 98–99% purity for sensitive applications. We synthesize everything we sell — we are not a broker — which means the people who answer your technical questions are the same people who ran your synthesis.

Alongside manufacturing, we invest heavily in education. The Vendors COMPP Knowledge Hub publishes vendor-neutral guides on the questions researchers ask most: what polypeptides are, how peptide bonds form, how to reconstitute peptides, how peptide testing labs such as Janoshik and Finnrick operate, and how to evaluate peptide suppliers fairly. We believe a better-informed research community raises standards for the entire industry.

Our Quality Philosophy

Quality in peptide manufacturing is not a slogan; it is a chain of documented steps. Our philosophy rests on four commitments:

• Synthesize, don’t broker. Full control of the synthesis record from resin loading to final lyophilization.
• Test every batch. Analytical HPLC and mass spectrometry on every lot, no exceptions and no “representative” COAs.
• Publish the data. Chromatograms and MS spectra ship with the product, matched to the batch number on the vial.
• State purity precisely. We distinguish chromatographic purity from net peptide content and report both.

For a detailed look at our analytical platform and synthesis methods, see the Technology page.

Research Use Only — And Why It Matters

All Vendors COMPP products are supplied for in vitro laboratory research by qualified personnel. We do not sell peptides for human consumption, clinical diagnosis or therapeutic use, and our terms of service require customers to confirm their institutional research context. This policy is not legal boilerplate: it protects researchers, protects the integrity of the supply chain, and keeps hxnetpeptide.com aligned with the regulated side of the peptide industry. If you are evaluating us alongside other peptide companies, our supplier evaluation guide explains the due-diligence checks we recommend applying to any vendor — including us.

Company Information