Nexus Laboratory,
run on receipts.

Nexus Laboratory mission

Nexus Laboratory exists to supply research peptides and small- molecule research compounds whose analytical chemistry is transparent. Independently verified batches publish public certificate records with HPLC purity, mass spectrometry identity, and endotoxin context where applicable; lots awaiting final documentation are labeled certificate pending instead of showing assay values. The company ships within the United States via USPS. The catalog is curated — 95 compounds across 14 research areas — not exhaustive, because the bottleneck on growing the catalog is the time required to validate analytical chemistry, not the time required to source raw material.

Verification philosophy

The Nexus verification model centers on three analytical checks for independently verified lots: reverse-phase HPLC for area-percent purity, mass spectrometry for compound identity (expected versus observed molecular mass), and bacterial endotoxin screening where applicable. Testing is performed by external laboratories — not by Nexus. Independence matters because in-house verification carries a structural conflict of interest: the same entity that benefits from a high-purity claim is reporting the data behind it.

Some research-compound vendors publish purity claims without publishing the chromatogram, the mass spectrum, or the lab identity. Some publish certificates of analysis behind a login wall, or only on request. The Nexus model is the opposite — published certificates are easy to find from product pages, dated where finalized, and traceable to a specific batch. Read the methodology in full on the Lab Verified page.

Compound categories we supply

The 95-compound catalog is organized into 14 research areas: GLP-1 and metabolic peptides (semaglutide, tirzepatide, retatrutide, cagrilintide and blends); growth hormone secretagogues (GHRH analogs, GHRPs, IGF-family); healing and tissue-repair compounds (BPC-157, TB-500, KPV, LL-37, thymosin alpha-1); cosmetic peptides (GHK-Cu, AHK-Cu, matrixyl); Russian Khavinson bioregulators (15 short tetrapeptide bioregulators); cognitive and nootropic peptides (selank, semax, cerebrolysin, DSIP, P21); longevity and cellular-health peptides (epithalon, FOXO4-DRI, MOTS-c, humanin, SS-31, NAD+); melanocortin peptides, sexual-health research peptides, sleep peptides, mitochondrial-energy compounds, specialty research compounds, oral-format research compounds, and reconstitution solvents. Compound reference data — including CAS, molecular weight, sequence, and classification where available — lives in the peptide research database.

Compliance and research-use commitment

All Nexus Laboratory products are sold 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 under any circumstances. Customers are responsible for ensuring their research complies with applicable institutional, local, state, and federal regulations. The full compliance framing is documented in the regulatory disclaimer.