Unlock the Power of Peptides
Welcome to
Longevity Peptides
Discover the latest research and insights on peptides for enhanced health and longevity. Explore the science behind these powerful compounds and their potential benefits.
Shop Peptides

Semaglutide
$80.00 – $185.00
Tirzepatide
$105.00 – $250.00
Retatrutide
$105.00 – $250.00We Reached
Discover the latest research and insights on peptides for enhanced health and longevity. Explore the science behind these powerful compounds and their potential benefits.
We Reached
Your Reliable Source for High-Quality Research Peptides
Longevity Peptides™ is more than just a trusted U.S. supplier of research peptides — we are a driving force behind scientific progress.
Committed to excellence, we deliver the highest quality peptides designed to empower researchers and innovators
to explore new frontiers and redefine possibilities.

Unparalleled Quality
Our proprietary processes and meticulous sourcing of premium materials ensure that every peptide we offer meets the most stringent standards.

Independently Verified
Our proprietary processes and meticulous sourcing of premium materials ensure that every peptide we offer meets the most stringent standards.

Fast Shipping & Support
We provide fast and reliable shipping, using the best couriers and high-quality packaging materials to ensure that your peptides arrive promptly and in optimal condition.
Featured Peptides

Semaglutide
$80.00 – $185.00
Tirzepatide
$105.00 – $250.00
Retatrutide
$105.00 – $250.00What Customers Says ?

Longevity Peptide has completely exceeded my expectations. The purity and consistency of their peptides are unmatched. Fast shipping and excellent customer service make them my go-to supplier.

Ordering from Longevity Peptide is always smooth and professional. Great support, quick turnaround, and top-tier products. You can tell they genuinely care about scientific advancement."

We’ve been sourcing peptides from various suppliers for years, but none have matched the reliability and quality we’ve found with Longevity Peptide. Their products have become an essential part of our research protocols.

What impressed me most was their transparency and documentation. Every product comes with clear COAs and the quality control is evident. Highly recommended for serious researchers.
Frequently Asked Questions
Before reaching out to our support team, please take a moment to visit our FAQ page. We regularly update it with the most accurate and comprehensive information to help answer your questions quickly — saving you valuable time and ensuring a smoother experience.
How should research peptides be stored?
Most research peptides should be stored in a cool, dry place before reconstitution. Once mixed with a sterile solution, they are typically kept refrigerated to maintain stability. Always refer to the manufacturer’s guidelines for proper storage.
How do you reconstitute research peptides?
Research peptides in lyophilized (freeze-dried) powder form need to be reconstituted with a sterile solvent before use in laboratory research. Common solvents include bacteriostatic water (BW), sterile water, or acetic acid, depending on the peptide’s stability. To reconstitute, slowly inject the chosen solvent into the vial along the inner wall to avoid damaging the peptide structure. Let the powder dissolve naturally—do not shake the vial, as this can degrade the peptide. Once fully dissolved, store the reconstituted peptide in a refrigerator to maintain stability and prevent degradation. Always follow proper laboratory handling procedures, as research peptides are for scientific use only.
What is the shelf life of raw and reconstituted research peptides?
Raw lyophilized (freeze-dried) peptides have a shelf life of 12 to 24 months when stored properly in a cool, dry place, ideally in a freezer or at least in a refrigerator to maintain stability. Once reconstituted with a sterile solvent, peptides generally remain stable for 7 to 30 days when refrigerated, depending on the specific peptide and solvent used. Some peptides may degrade faster, so proper storage is essential. Always follow laboratory guidelines and use reconstituted peptides promptly for research purposes.
Where are research peptides made?
Research peptides are manufactured in specialized laboratories and biotech facilities worldwide, with major production hubs in the United States, China, India, and Europe. These laboratories use advanced solid-phase peptide synthesis (SPPS) or liquid-phase peptide synthesis (LPPS) to ensure purity and consistency. High-quality peptides are typically produced under GMP (Good Manufacturing Practice) standards, while lower-cost research-grade peptides may come from facilities that do not follow strict pharmaceutical regulations. Always verify the source, purity, and testing standards before purchasing research peptides for scientific use.
Join over 30,000 medical professionals worldwide who trust research peptides to further positive healthcare outcomes.