About Purely Peptides
Built by researchers,
for researchers.
Purely Peptides was founded in Phoenix, Arizona by a team with backgrounds spanning IT systems, laboratory equipment supply, and evidence-based wellness. We supply high-purity lyophilized peptides, oral compounds, and injectable formulations strictly for qualified in-vitro and preclinical research applications.
Who We Are
Our founding team brings years of experience in technical sourcing, laboratory equipment valuation, and pharmacological research. Before launching Purely Peptides, our principals worked extensively in life sciences supply chains — evaluating scientific instruments from institutions including university surplus programs, medical device companies, and research laboratories across the United States.
That background gave us a deep appreciation for quality verification, chain-of-custody documentation, and the standards the research community demands. We applied those same principles to peptide sourcing: every lot we submit for testing is analysed by an independent laboratory, batch-tracked, and published with its full Certificate of Analysis. Coverage grows with each fill and does not yet span the whole catalog — the certificate index shows exactly which lots are covered.
We are not a gray-market reseller. We are a dedicated research compound supplier with transparent sourcing, verified purity data, and a commitment to serving legitimate research applications — nothing more, nothing less.
Our Standards
Third-Party Purity Testing
Lots we submit for testing go to an independent analytical laboratory — identity by LC-MS/MS, purity by RP-HPLC at 214 nm, and measured content by HPLC quantitation, so both what a vial contains and how much of it is reported. Every lot we have tested has its certificate published. Coverage grows with each fill and does not yet span the whole catalog.
Lot Tracking & COA Documentation
Every lot we have tested has its third-party certificate published at its own permanent URL — not supplied on request. The code printed on each vial resolves to that specific lot's certificate, and every certificate carries a laboratory verification code you can check against the lab's own records rather than ours. Published lots are a subset of the catalog and grow with each fill. Browse the certificates.
Peer-Reviewed Research Backing
Peptide product pages carry PubMed-cited references, mechanism of action breakdowns, and research application summaries — written to the standard of the scientific literature, not marketing copy.
Research-Only Supply
All products are sold strictly as research compounds for in-vitro and laboratory use. We do not supply for human therapeutic use, and all orders require acknowledgment of research intent.
What We Carry
Our catalog spans GLP-1 and dual/triple incretin receptor agonists (Semaglutide, Tirzepatide, Retatrutide), tissue repair peptides (BPC-157, TB-500, GHK-Cu), nootropics (Semax, Selank, P21), mitochondrial peptides (MOTS-c), and longevity compounds (Epithalon, NAD+). We also carry oral formulations, ancillaries, and our proprietary GLOW blend.
Based in Phoenix, Arizona
We operate out of the Greater Phoenix area. All orders are processed and shipped from Arizona with discreet packaging and same-day handling on orders placed before 2 PM MST.
Research Use Only
All products sold by Purely Peptides are intended strictly for in-vitro research, educational, and laboratory use by qualified research professionals.
None of our products are approved by the FDA or any regulatory body for human therapeutic, diagnostic, or veterinary use.
The research information on our product pages is based on peer-reviewed published literature and does not constitute medical advice, diagnosis, or treatment guidance.
Get in Touch
Questions about sourcing, bulk orders, COA documentation, or special requests? Reach us directly — we respond quickly.