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JPT: The Peptide Experts!

Tailored Peptide Synthesis for Every Application

Tailored Synthesis

Custom Peptide Synthesis


Select your peptide format (pool, library, microarray...), peptide purity (from crude up to >95%) and optional modifications (phosphorylation, biotin, dyes and labeled, cyclization, conjugation, stable-isotope labeling, etc.).


Tailored Synthesis

Scalable Peptide Solutions


Our product range includes micro-scale synthesis (10-50 nmol), intermediate peptide synthesis (1-100 mg), and large-scale peptide synthesis (>1 g).


Tailored Synthesis

Years of Experience


Over the last 20 years, we have developed a unique and very broad expertise in peptide manufacturing and have pioneered patented technologies in the field of peptide libraries, pools and microarrays as well as micro-scale synthesis.


Our Most Popular Products & Services



Our Quality Management

Since 2004, JPT has maintained an active quality management system that is reviewed, audited, and certified annually by an independent certification body (TÜV Rheinland) to ISO 9001:2015 standards.



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Tailored Synthesis

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Tailored Synthesis

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Browse through the most frequently asked questions about our services.

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Tailored Synthesis

Explore our Quality & Purity Chart

Explore detailed information on the quality and purity of our products.

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Featured News

Cyclic Peptides: Powerful Tools

Cyclic peptides are gaining momentum in drug discovery.  They are increasingly important in drug discovery due to their synthetic accessibility and favorable biological properties for screening, optimization, and mechanistic studies in modern peptide-based research. 


June 2026

A Short Video on JPT's Peptide Libraries!

Over the past months, we have explored the world of peptide libraries: from their design conception and synthesis to their diverse applications in biological screening, immunology, drug discovery, and clinical research. To bring these concepts together, we have created a short video...


June 2026

Remaining Vigilant: JPT's Peptide Tools for Ebola

Following recent international concern surrounding Ebola outbreaks in Central Africa, research efforts are increasingly focused on improving immune monitoring, vaccine development, and epitope characterization across different Ebola virus species and strains.


May 2026


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