Research Peptides — 4-Panel Analytical Testing, Every Lot
We don’t ask you to
take our word for it.
Every lot undergoes five independent analytical tests before it ships. Every result goes into the public COA library before the product leaves our facility — not after you request it.
Switching vendors? See what we carry →
| Test | Result |
|---|---|
| 01 HPLC Purity | 99.1% PASS |
| 02 ESI-MS | 1419.5 Da PASS |
| 03 LAL Endotoxin | 0.19 EU/mL PASS |
| 04 Amino Acid | Confirmed PASS |
Issued Mar 09, 2026
Culver City, CA
Compound Catalog
Lyophilized powder. Research-grade compounds with full analytical testing on every lot.
Standard lab runs use 3–4 peptides per protocol. Orders over $150 ship free — most multi-peptide orders qualify.
BPC-157
What is BPC-157? BPC-157 is a synthetic pentadecapeptide composed of 15 amino acids, with the sequen
Free standard shipping on orders over $150 · Same-day dispatch before noon PST, Mon–Sat · For research use only
Why we run five tests when most vendors run one.
Analytical methods validated against pharmaceutical industry acceptance criteria.
Reversed-phase HPLC with UV detection at 220 nm. Purity by area normalization. Minimum acceptance: ≥98.0%.
Total peptide purity. Identifies co-eluting impurities, incomplete couplings, and degradation products. Chromatogram published with every COA.
Confirms purity but not identity. A mis-synthesized peptide with the wrong sequence can read ≥99% pure. That is why ESI-MS is required as a second check.
Electrospray ionization mass spectrometry. Mass confirmed to ±0.1 Da of theoretical. Multiply charged ion envelope deconvoluted for intact mass.
Molecular identity. Confirms the synthesized peptide matches the intended sequence by mass. Spectrum published in COA.
A peptide can show 99% chromatographic purity and still be the wrong compound. Mass spec confirms molecular identity independently.
Limulus amebocyte lysate (LAL) assay per USP <85>. Kinetic turbidimetric method. Acceptance: <0.25 EU/mL.
Bacterial endotoxin (lipopolysaccharide). Pyrogenic and can confound inflammatory endpoints in vivo, regardless of peptide purity.
Requires dedicated instrumentation and validated depyrogenation. Invisible to both HPLC and mass spectrometry.
Acid hydrolysis (6N HCl, 110°C, 24 hrs) followed by chromatographic quantification of amino acid ratios. For peptides >15 residues.
Net peptide content and amino acid composition. Confirms correct residues in expected proportions.
Without AAA, dosing is based on gross weight including TFA counterions and moisture. AAA provides actual peptide fraction for accurate dosing.
Tests 3–5 require dedicated instrumentation beyond standard HPLC/MS and are not part of most research peptide vendors’ standard release panel. All analytical data, including raw spectra and measured values, is published in the COA for each lot.
Certificates of Analysis — published before shipment, searchable by lot number, downloadable without account creation.
Every lot documented before it ships — not after you request it. Every result in the public library.
| LOT | PRODUCT | HPLC PURITY | DATE |
|---|
SHOWING 0 OF — LOTS
Lot numbers on your COA match the lot numbers in this library. If a lot number is not listed, contact us before using the compound.
Search All COAs by Lot NumberResearch Institutions and Lab Teams
University labs, CROs, and biotech teams order through us with documentation formatted for institutional procurement review.
- — Volume pricing starting at 100+ units
- — Chemists available for institutional support
- — COAs formatted for records management and IRB documentation
Genesis Peptides operates from Culver City, California. Every certificate of analysis is downloadable without an account, searchable by lot number, and includes verification data from our third-party testing laboratory. We have maintained continuous operations with a clean regulatory record.