Research-grade peptides, verified by science.
HPLC purity and mass-spectrometry identity on every lot — with the COA published and searchable by batch number. US synthesis, US fulfillment.
BPC-157
Stable gastric pentadecapeptide widely studied for tissue repair.
BPC-157 / TB-500 Blend
Co-lyophilized 5mg/5mg blend for combined recovery research.
Semaglutide
Long-acting GLP-1 analog central to metabolic research.
Tirzepatide
Dual GIP/GLP-1 receptor agonist for metabolic studies.
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View all →Bestselling research peptides
See all →BPC-157
Stable gastric pentadecapeptide widely studied for tissue repair.
TB-500
Actin-regulating peptide studied for cell migration and recovery.
Semaglutide
Long-acting GLP-1 analog central to metabolic research.
Tirzepatide
Dual GIP/GLP-1 receptor agonist for metabolic studies.
Six checks before a vial ships
Every production lot is independently analyzed by accredited labs — Janoshik Analytical, MZ Biolabs, Colmaric Analyticals — and the result is posted publicly, matched to the batch number printed on your vial.
How we test →- HPLC purity ≥98%
- Mass-spec identity confirmation
- Endotoxin (LAL) testing
- Sterility statement
- US synthesis address on COA
- Batch-matched, ≤12 months old
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Enter the batch number from your label to pull the exact certificate of analysis — purity, identity, lab, and test date. No login required.
Trusted by researchers
“The only vendor where I can pull the exact batch COA before I even open the vial. That transparency is why we reorder.”
“HPLC and mass-spec on every lot, results match what's published. Shipping is fast and packaging is discreet.”
“Switched our whole supply chain over after a contamination scare elsewhere. VeriPeptides' documentation is a different league.”
From the lab notebook
All articles →How to Read a Peptide Certificate of Analysis (COA)
A COA is only useful if you know what each line means. Here's how to verify purity, identity, and batch matching like a lab would.
Reconstitution Basics for Lyophilized Peptides
Bacteriostatic water, draw volume, and storage — the fundamentals of preparing a lyophilized research peptide correctly.
Why Third-Party Testing Beats In-House Claims
An in-house 'we test everything' claim is unverifiable. Independent labs and public results are the difference.