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Research Peptides. Verified.
Trusted.
Longevx Peptides delivers 99%+ purity research compounds with full third-party Certificates of Analysis. Every batch. Every time.
Our Catalog
Featured Products
Research peptides, third-party identity tested
RetatrutideA novel triple agonist targeting GIP, GLP-1, and glucagon receptors simultaneously. Studied for its potent effects on metabolic regulation and energy homeostasis.
BPC-157A synthetic pentadecapeptide derived from a protective protein found in the stomach. Widely studied for its regenerative properties.
TB-500A synthetic version of the naturally occurring peptide Thymosin Beta-4. Studied for its role in cellular migration and tissue repair.
Why Longevx
Everything you need to succeed
Always in Stock
Top research peptides like Retatrutide, BPC-157, TB-500, and Semaglutide ready to ship. No backorders, no waiting.
99%+ Purity Guaranteed
Every batch tested by US labs via HPLC and Mass Spec. Full Certificate of Analysis included free.
Safe & Protected Shipping
Discreet packaging with full tracking on every USA order. Every shipment fully insured.
Researcher Community
Connect with fellow researchers. Share peer insights and discuss peptide research applications.
Volume Pricing
Bulk pricing available for larger research orders. Lower per-vial cost at higher volumes.
Extensive Research Library
Access our comprehensive collection of research articles, studies, and educational resources.
Quality Assurance
Quality you can verify, not just trust
Every batch is independently tested by accredited U.S. laboratories. We don't ask you to take our word for it — we give you the proof.
Verified Potency
HPLC AnalysisEvery vial is tested to confirm it contains exactly what the label says—down to the microgram.
Why it matters: No guessing games. You get the exact concentration you paid for, every single time.
Our Process
US-sourced. Independently tested. Fully documented.
Every Longevx peptide is manufactured under strict quality controls and independently verified by accredited American third-party laboratories. Our in-house quality team reviews every Certificate of Analysis before a single vial ships.
Synthesis & Manufacturing
Peptides synthesized to specification with documented quality procedures.
Third-Party Lab Testing
Independent HPLC and mass spectrometry testing at accredited US laboratories.
CoA Review & Approval
Our quality team reviews every CoA. Only batches meeting 99%+ purity ship.
Lyophilization & Packaging
Freeze-dried and sealed for maximum stability. Discreet, professional packaging.
Accredited third-party testing
Researcher Reviews
Trusted by researchers
"The purity documentation from Longevx is exceptional. Every CoA I've received has been thorough and the compounds perform consistently in our assays."
"I've sourced peptides from several vendors. Longevx's quality control is noticeably superior. The BPC-157 and TB-500 batches have been flawless."
"The semaglutide and tirzepatide compounds are exactly as advertised. 99%+ purity verified independently. Shipping was fast and discreet."
Common Questions
Frequently Asked Questions
What purity level are your peptides and how is it verified?
How should I store the lyophilized product?
How fast do you ship and is cold shipping required?
Are these peptides for human use?
All the research peptides you need,
with the purity you can verify.
Join thousands of researchers who trust Longevx for consistent, documented quality.
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Not sure which compound to choose?
Answer 4 quick questions about your research goals and our Compound Finder will match you with the right peptide — with the science to back it up.
Takes about 1 minute
Metabolic & Glucose
GLP-1, GIP, Glucagon
Standard Protocol
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Top Match
Retatrutide
Triple GIP / GLP-1 / GCG Agonist