Third-Party Lab Tested
COA With Every Batch
Ships from Arizona
Research Use Only · 21+
Research-grade peptide reference materials
Pure research peptides. Verified by the batch.
Lyophilized research compounds independently tested by a third-party laboratory, with a Certificate of Analysis published for every lot.
✓ HPLC purity data
✓ Mass spec identity
✓ Lot-coded vials
3rd-Party Tested
Independent analytical lab
HPLC Verified
Purity reported per lot
COA Included
Linked on every listing
Ships from Arizona
Domestic fulfillment
Research catalog
Featured compounds
PRODUCT IMAGE
PRODUCT IMAGE
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Lab results
Every batch, independently verified.
Each lot is tested by an independent analytical laboratory before release. The Certificate of Analysis appears on the product page and in our public certificate library.
Browse the certificate library✓ Third-party lab tested
Certificate of Analysis
Independent testing confirms purity and identity for this lot.
99.0%
Purity (HPLC)
PB-0000
Batch
Passed
Endotoxin
MM / YYYY
Test date
Sample layout. Product pages show the actual certificate for the lot in stock.
Documentation standards
Compounds you can verify.
We publish the analytical facts a laboratory needs to evaluate a reagent — and nothing beyond them.
01
Chemical characterization
Sequence, molecular formula, molecular weight, CAS number, purity method, and solubility on every listing.
02
Lot traceability
Vial labels carry the lot number and RUO statement, matching each container to its analytical record.
03
Technical support
Our team answers questions about chemical attributes, specifications, and documentation only.
Terms of purchase
Qualified purchasers only
Products are sold exclusively as laboratory reagents. By ordering, the purchaser accepts our Research Use Only Terms of Sale. Orders that indicate personal or human use will be cancelled.
Read the RUO Terms of Sale✓ Purchaser is 21 years of age or older
✓ Materials are for in-vitro / laboratory research only
✓ Not for human or animal administration of any kind
✓ Handled by persons trained in laboratory safety
PEP BROS
Research peptides with independent, batch-level verification.
All products are sold strictly for laboratory research purposes only and are not for human or veterinary consumption. They are not drugs, foods, dietary supplements, or cosmetics. Statements on this website have not been evaluated by the U.S. Food and Drug Administration, and no product is intended to diagnose, treat, cure, mitigate, or prevent any disease. Pep Bros LLC is a supplier of research chemicals and is not a pharmacy, compounding pharmacy, or outsourcing facility. Purchasers must be 21 years of age or older and are responsible for safe handling and lawful use.
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