A research peptide supplier built around analytical evidence
USA Peptide Vendor exists for one audience: laboratories. We supply research peptides with the documentation a laboratory actually needs — independent purity data, mass-spec identity confirmation, lot traceability and clear storage guidance — and we ship them from warehouses on both sides of the Atlantic.
- 99%+
- Minimum verified purity (HPLC)
- 10,000+
- Orders fulfilled worldwide
- 500+
- Research institutions served
- 24h
- Dispatch on in-stock batches
From synthesis to your bench
Four stages, each producing documentation rather than marketing claims. If a lot fails any stage it is not released to inventory.
Synthesis & purification
Peptides are produced by solid-phase synthesis, purified by preparative reverse-phase HPLC and lyophilised into sealed crimp vials under GMP-aligned conditions.
Independent analysis
Every lot goes to an independent ISO-certified laboratory for HPLC purity at 214 nm and ESI-MS identity confirmation against the theoretical mass.
Release documentation
Fill weight, appearance, lot number, storage guidance and expiry are compiled into a batch-matched certificate of analysis — no generic, reused documents.
Dual-warehouse distribution
Released stock is held in Delaware for the USA and Rotterdam for the EU and UK, so transit is short and customs documentation is predictable.
Research use only — stated plainly
Everything we sell is labelled for research use only. Our kits are not medicines, dietary supplements or cosmetics, and nothing on this website is medical advice. We do not publish dosing information and we do not market peptides for human consumption.
Buyers are responsible for ensuring that the import, possession and use of any compound we supply complies with the laws of their own jurisdiction. Requirements differ between EU member states and change over time, and specific compounds are controlled in some countries. If you are unsure, check with your institution’s compliance office before ordering.
We declare shipments accurately. Consignments are documented as laboratory reference materials with the research-use statement on the commercial paperwork and the certificate of analysis inside the box.
Quality commitments
- • Independent ISO-certified laboratory testing on every lot
- • HPLC purity at 214 nm with stated method parameters
- • ESI-MS identity against theoretical sequence mass
- • Batch-matched COA — lot number matches your vials
- • GMP-aligned synthesis and sealed crimp-vial packaging
- • Cold-chain options for HCG, HMG, somatropin and IGF-1 LR3
Who we serve
University research groups, contract research organisations, analytical laboratories, distributors and independent research teams across the United States, the European Union, the United Kingdom and Canada. Bulk and standing-order programmes are supported with consolidated freight and reserved inventory.
Our service promise
Technical questions are answered by people who understand the analytical data, not a script. Quotes are returned within one business day, and any consignment that arrives damaged or misdocumented is replaced at our cost.
Questions about our standards
If your institution needs a supplier questionnaire completed, a sample certificate of analysis or a quality agreement, contact us and we will provide the documentation.
Request Supplier DocumentationWho is USA Peptide Vendor?
USA Peptide Vendor is a research-peptide supplier founded in 2019, serving laboratories in the United States, the European Union, the United Kingdom and Canada. We stock 33 peptides supplied as sealed 10-vial kits with batch-matched certificates of analysis, dispatched from warehouses in Delaware and Rotterdam.
Where do your peptides come from?
Our peptides are produced by established solid-phase peptide synthesis facilities operating to GMP-aligned quality systems, then purified by preparative HPLC and lyophilised. Every production lot is submitted to an independent ISO-certified analytical laboratory for purity and identity testing before it is released to our inventory.
How do you verify purity and identity?
Each lot is analysed by reverse-phase HPLC at 214 nm for purity and by mass spectrometry (ESI-MS) for identity against the theoretical mass of the exact sequence. The results, fill weight, lot number, storage guidance and expiry are documented on a batch-matched certificate of analysis shipped with your kit.
Do you sell to the public?
Our products are supplied to the public and also strictly to laboratories for laboratory research and analytical reference use. They are not medicines, supplements or cosmetics, and they are not for human or veterinary consumption. Orders are quoted and fulfilled for research customers.
How long have you been trading?
USA Peptide Vendor has operated since 2019, has fulfilled more than 10,000 orders and serves over 500 research institutions, contract research organisations and distributors.