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Research peptides and solvents where batch status is visible before you buy. Independently verified lots show public COA records; pending certificates stay clearly labeled. Proof first, purchase after.
Lyophilized peptides, blends, and research solvents with COA status visible before checkout.
Every listing surfaces its batch status before checkout. Verified lots show purity, identity, and the public COA; pending certificates never borrow verified language.
The vial is not the proof. The public record attached to it is.
Open verification methodLive listing gate
COALive from the public COA archive
Four gates. No shortcuts. Watch a lot clear the gauntlet — the release record stays visible the whole way down.
Documented supply channels. No anonymous brokers.
Third-party HPLC + MS published for verified lots.
Batch numbers, lab reports, provenance — on the record.
Supplier documentation reviewed before intake.
Batch status, product identity, and release records checked before public listing.
HPLC purity and mass-spec identity for finalized COA lots.
Reverse-phase chromatography, ESI-TOF mass spec, LAL endotoxin gel-clot.
Independent records published when a lot is verified.
Public COA for verified batches. Pending lots labeled clearly.
USPS domestic logistics.
United States shipping only. Tracking sent after fulfillment.
The full catalog — with every batch record one click deep.
Nexus records terminal
Nexus Laboratory is a United States supplier of research peptides and small-molecule research compounds for in-vitro laboratory research. Independently verified lots are tested by third-party laboratories — not in-house — and the resulting certificate of analysis is publicly archived. Pending certificates are labeled pending, without assay values. No login wall, no request form.
The catalog covers 95 compounds across 14 research areas — from GLP-1 metabolic peptides and tissue-repair pentadecapeptides to Russian-bioregulator Khavinson peptides and mitochondrial-energy small molecules. Browse the full research catalog or start at the peptide research database for compound reference data.
Nexus Laboratory surfaces batch status across the catalog and publishes public Certificates of Analysis for independently verified lots — reverse-phase HPLC for area-percent purity, mass spectrometry for identity confirmation, and endotoxin screening where applicable. Browse the full research catalog by category below, or read the complete verification methodology.
Nexus separates verified lots from pending certificates through four release gates: lot intake with Nexus batch ID assignment, reverse-phase HPLC area-percent purity measurement (target ≥98%) by an independent third-party laboratory, mass spectrometry identity confirmation comparing expected versus observed molecular mass, and public record publication of the branded Certificate of Analysis when finalized. Read the full methodology on the Lab Verified page.
All Nexus Laboratory products are supplied strictly for in-vitro research and analytical use. They are not pharmaceuticals, are not intended for human consumption or veterinary use, and Nexus does not provide therapeutic, dosing, or medical guidance. Common questions about handling, storage, reconstitution, and shipping are covered in the research peptide FAQ. Compliance framing is documented in the regulatory disclaimer.
Catalog, verification & compliance
