Research library

Resources for researchers

Guides, explainers, and reference material to support your peptide research, from fundamentals to advanced protocols.

Guides & explainers

Peptide science, explained

Fundamentals6 min read

What Are Synthetic Research Peptides?

An introduction to synthetic peptides — how they are made, why purity matters, and how they differ from naturally occurring peptides in biological systems.

Amino acidsPeptide bondsSPPS synthesis
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Quality & Purity8 min read

Understanding Certificates of Analysis

How to read a CoA, what HPLC purity figures mean, and why mass spectrometry confirmation is essential for reproducible research outcomes.

HPLC analysisMass spectrometryPurity thresholds
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Lab Protocols5 min read

Reconstitution & Storage Best Practices

Step-by-step guidance on reconstituting lyophilised peptides, choosing the right solvent, and storing compounds to preserve stability and potency.

LyophilisationSolvent selectionCold storage
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Research Design7 min read

Designing In-Vitro Peptide Experiments

Key considerations for in-vitro study design: concentration ranges, controls, assay selection, and avoiding common sources of experimental error.

Dose-responseAssay designControls
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Regulatory4 min read

Research Use Only: Legal & Ethical Framework

A plain-language overview of the regulatory landscape for research peptides, what 'research use only' means in practice, and responsible sourcing.

RUO classificationComplianceResponsible use
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Peptide Science9 min read

Receptor Binding & Selectivity in Peptide Research

How peptides interact with cellular receptors, the role of structural conformation in binding selectivity, and implications for mechanistic studies.

Receptor pharmacologyBinding affinityStructure-activity
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Quick reference

Key terms glossary

High-Performance Liquid Chromatography (HPLC)
The standard analytical method used to measure peptide purity by separating components in a sample.
Lyophilisation
Freeze-drying process used to remove water from peptide solutions, producing a stable powder that can be stored long-term without degradation.
Certificate of Analysis (CoA)
A document from an accredited laboratory confirming the identity, purity, and quality of a specific batch of compound.
Solid-Phase Peptide Synthesis (SPPS)
The primary method for manufacturing synthetic peptides, allowing precise control over sequence and modifications.
In-vitro
Research conducted in a controlled environment outside a living organism, such as in cell cultures or test tubes. All Peppy products are for in-vitro use only.
Mass spectrometry
Analytical technique that confirms the molecular identity of a compound by measuring the mass-to-charge ratio of its ions.

All content on this page is provided for educational and informational purposes only. It does not constitute medical, veterinary, or regulatory advice. All Peppy products are for in-vitro scientific research use only and are not intended for human or animal consumption.

Have a research question?

Our team is happy to help with technical questions, compound selection, or protocol guidance.

Technical questions about specific compounds
Guidance on reconstitution and storage
Wholesale and bulk pricing enquiries
Certificate of Analysis requests