What Are Research Peptides? Definition · How They’re Made · Legal Status · COA Verification · QSC Catalog
Research peptides are synthetic amino acid compounds produced for in vitro laboratory investigation. They range from FDA-approved drug analogues (Semaglutide, Tirzepatide, PT-141) to experimental longevity compounds (Epitalon, FOXO4-DRI) to mitochondrial research tools (SS-31, MOTS-c). QSC stocks 80+ research peptides at ≥99% HPLC with Janoshik independent COA — publicly verifiable at verify.janoshik.com.
A research peptide is a synthetic short-chain amino acid compound produced by Solid-Phase Peptide Synthesis (SPPS) and supplied at high purity (≥99% HPLC) for in vitro laboratory investigation. Key characteristics:
Synthetic production (SPPS) — not derived from biological sources
≥99% HPLC purity — confirmed by independent mass spectrometry
Lyophilized (freeze-dried) form — supplied as white powder in sealed vials
Certificate of Analysis (COA) — documents purity and identity
Research use only — not for human consumption or therapeutic application
Every batch submitted to Janoshik — independent Czech lab. Results published at verify.janoshik.com. Any researcher verifies by batch code. No trust in QSC required.
Novel Pipeline Compounds
Retatrutide, Eloralintide, FOXO4-DRI, MOTS-c, SS-31, Cagrilintide — compounds Peptide Sciences never stocked and most suppliers don’t carry.
Ships from US warehouse. Most orders same-day or next business day. EU researchers: qsc-eu.com with EUR pricing and EU shipping.
Frequently Asked Questions
What are research peptides?
Synthetic amino acid chains produced by SPPS for in vitro laboratory investigation. Supplied at ≥99% HPLC purity with COA documentation. Research use only — not for human consumption.
Are research peptides legal?
Legal to purchase for in vitro research as research chemicals in USA and most countries. Cannot be sold for human use. QSC sells all compounds with research-use-only labeling.
How are research peptides different from supplements?
Research peptides: ≥99% HPLC synthetic compounds, COA-documented, for laboratory research only, not FDA-evaluated. Dietary supplements: DSHEA-regulated, food-derived or synthetic, for oral ingestion, health claims permitted within DSHEA.
What is the best research peptide supplier?
QSC (qscpeptide.com) offers 80+ compounds at ≥99% HPLC with Janoshik independent COA (publicly verifiable at verify.janoshik.com), novel pipeline compounds, and the full 20+ Khavinson bioregulator catalog. US-based, fast shipping.
Browse the QSC Research Peptide Catalog
80+ Compounds · ≥99% HPLC · Janoshik COA · All Categories
