Every batch we list is independently verified by Analytical Formulations, Inc. — an independent US-based peptide testing laboratory. COAs are on file for every active lot.
Research-Grade Peptides for Scientific Excellence
Research Vials is a US peptide supplier for licensed labs. We make 60+ research-grade peptides. Every vial ships with a batch-specific COA from a third-party lab. We do not ship internationally. We do not sell to consumers. We do not bundle syringes with vials — research compounds are not for human use.
Every batch is produced in cGMP-certified facilities and verified through rigorous third-party testing by leading American third-party labs. Certificates of Analysis (COAs) are provided with every compound, ensuring researchers have the confidence and clarity they need for consistent results.
With a commitment to precision, Research Vials is your dependable partner for research excellence.
What does our 98%+ purity guarantee mean for your research?
Every batch we ship is verified by an independent third-party lab using purity chromatography and mass spectrometry before release. In our testing, average peptide purity across 2025 batches has measured 98.7% (data: COA archive, batch range YPB.100-YPB.290). When researchers replicate published protocols, batch-to-batch consistency matters more than a marketing claim — that’s why we publish every COA, including the ones that don’t show 98%+. See referenced peptide research at PubMed: BPC-157 mechanism studies and PubMed: TB-500 angiogenesis.
How do we ensure peptides are research-grade?
We work directly with cGMP-certified facilities for solid-phase peptide synthesis. Each batch then ships to an independent US lab for verification. Our quality process targets peptide purity ≥98%, with mass spectrometry to confirm molecular weight, plus endotoxin testing per USP <85>. We’ve found that the variance researchers see between vendors usually traces back to two things — whether the peptide was actually third-party tested, and whether the COA matches the lot they received. Both are addressable with discipline. See our full peptide catalog and methodology at DOI: 10.1021/acs.jpr.0c00789.
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5-amino-1mq
Price range: $30.00 through $77.95Select options This product has multiple variants. The options may be chosen on the product page -
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BPC-157
Price range: $34.85 through $65.00Select options This product has multiple variants. The options may be chosen on the product page -
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Explore the Science Behind Every Peptide
Dive into our Research Peptide Blog for detailed research guides, peer-reviewed studies, and scientific analysis on the compounds that matter to your research.