Featured Peptides

Bestselling Research Peptides

New — Research Pen Injectors

Pre-filled Research Peptide Pens

HPLC verified research grade compounds in precision pre-filled pen format. Independent COA documentation included on every order. For laboratory research use only.

GLP-1R Semaglutide research pen injector 2mg PeptideCores

Semaglutide Pen

GLP-1 Receptor Agonist

2mg total 0.5mg/dose 4 doses

Selective GLP-1R agonist. HPLC verified 99%+ purity. COA included. Once weekly research protocol.

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DUAL Tirzepatide research pen injector 2.5mg PeptideCores

Tirzepatide Pen

GLP-1R & GIPR Dual Agonist

2.5mg total 2.5mg/dose 4 doses

Dual incretin receptor agonist. GLP-1R and GIPR co-activation. HPLC verified 99%+. COA included.

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MOST ADVANCED
TRIPLE Retatrutide research pen injector 4mg PeptideCores

Retatrutide Pen

GLP-1R / GIPR / GCGR Triple Agonist

4mg total 1mg/dose 4 doses

Triple receptor co-agonist — GLP-1R, GIPR and GCGR simultaneously. First of its class. COA included.

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REPAIR BPC-157 research pen injector 5mg PeptideCores

BPC-157 Pen

Tissue Repair Research Peptide

5mg total 250mcg/dose 20 doses

Pentadecapeptide studied in cellular biology and tissue repair research. Daily use protocol. COA included.

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GH Ipamorelin research pen injector 5mg PeptideCores

Ipamorelin Pen

GH Secretagogue Research Peptide

5mg total 100mcg/dose 50 doses

Selective GHSR-1a agonist studied in GH secretagogue research. Daily use protocol. COA included.

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HPLC Verified 99%+
Independent third-party testing
📄
COA on Every Order
Batch-specific documentation
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EU-Wide Shipping
Dispatched within 24 hours
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GDPR Compliant
Discreet packaging
VIEW ALL RESEARCH PENS

All research pen products are intended for laboratory research purposes only. Not for human or veterinary use. For use by qualified researchers in appropriate laboratory settings only.

What Are Research Peptides? A Guide for European Researchers

Research peptides are synthetic amino acid chains studied in controlled laboratory environments worldwide. Researchers across Europe buy research peptides for a wide range of scientific applications — from tissue repair biology and cellular longevity research to metabolic pathway studies and neuroendocrine research.

At PeptideCores every research peptide is supplied as lyophilised powder, HPLC verified at 99%+ purity with a Certificate of Analysis confirming molecular identity included on every order. Our European research peptide range covers tissue repair compounds including BPC-157 and TB-500, anti-aging peptides including GHK-Cu and Epithalon, metabolic research peptides including Semaglutide and Tirzepatide, and longevity compounds including NAD+ and MOTS-c — dispatched to Europe within 24 hours.

HPLC Verified Purity — COA on Every Order Across Europe

When European researchers buy research peptides online, purity verification is the most critical factor. Every research peptide supplied by PeptideCores undergoes independent third-party High Performance Liquid Chromatography testing confirming purity at 99% or above before dispatch to Europe or worldwide. A batch-specific Certificate of Analysis documenting purity percentage, molecular weight confirmation and identity verification is included with every single order as standard — no exceptions.

99%+

HPLC Purity

100%

COA Included

24hrs

Dispatch

5–10

Days to Europe