Third-Party Lab Tested
COA With Every Batch
Ships from Arizona
Research Use Only · 21+
Lab results
Every lot we sell is tested by an independent third-party analytical laboratory. Find the certificate for any product by name or by the lot number printed on the vial label.
Reading a certificate
01
High-performance liquid chromatography measures the percentage of the target peptide relative to other detected components in the sample.
02
The measured molecular mass is compared with the theoretical molecular weight of the expected sequence to confirm identity.
03
Where performed, the report states the endotoxin test method and whether the lot met the laboratory's specification.
04
Each certificate lists the lot number and analysis date, matching the lot code printed on your vial.
Certificate library
Certificates are added here before each new lot is released for sale.
Product
Lot No.
Purity
Test date
Report
Research Use Only
Certificates of Analysis document chemical characterization only. They do not indicate suitability for human or veterinary use. All products are strictly for laboratory research and are not for human consumption.
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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