Every article on Regena Peptides, in one place

Research Compounds Overview

Top-down map of every major research-peptide family.

Laboratory Peptides Guide

What lab-grade means and how it's enforced.

Compound Storage Guide

Storage temperature, light, reconstituted shelf-life.

Peptide Stacking Guide

Compatibility considerations in research design.

How to Reconstitute Peptides

Step-by-step with bacteriostatic water.

What Are Peptides?

Plain-English primer on amino-acid chains.

Are Peptides Safe?

Safety profile and the limits of current data.

Are Peptides Legal?

Legal status of research peptides by region.

BPC-157 Research

Mechanism, studies, key data points.

GHK-Cu Research

Copper peptide mechanism and literature.

Is Ozempic a Peptide?

Where GLP-1 agonists sit on the peptide spectrum.

About this publication

Editorial standards and how we assess evidence.

Independent Testing Results

Searchable batch & COA database.

Janoshik Testing

What independent lab Janoshik tests for.

How to Read a COA

Every line on a certificate of analysis.

HPLC vs Mass Spectrometry

Which testing technique proves what.

Third-Party Testing

Why independent labs matter.

cGMP Peptide Manufacturing

Manufacturing controls explained.

Tirzepatide vs Semaglutide

Side-by-side pharmacology and dosing.

Tirzepatide vs Retatrutide

Dual vs triple incretin agonists.

Retatrutide vs Tirzepatide vs Semaglutide

Three-way comparison.

BPC-157 vs TB-500

Two recovery peptides compared.

GHK-Cu vs BPC-157

Different mechanisms, overlapping uses.

Ipamorelin vs CJC-1295

Growth hormone secretagogue comparison.

Ipamorelin vs MK-677

Peptide vs oral secretagogue.

AOD-9604 vs Tesamorelin

Fat-loss peptide comparison.

Epithalon vs GHK-Cu

Longevity peptides compared.

MOTS-c vs SS-31

Mitochondrial peptide comparison.

KPV vs BPC-157

Anti-inflammatory peptide comparison.

Tesamorelin vs CJC-1295

GHRH analog comparison.

What Are Research Peptides?

A plain-English primer on research peptides: what they are, how they differ from clinical-grade compounds, and how scientists actually use them.

What Is Research Grade?

What 'research grade' actually means, the minimum purity bar to expect, and how to tell a real research-grade supplier from a marketing one.

Understanding Certificates of Analysis (COAs)

How to read a peptide COA: purity by HPLC, identity by mass spec, batch codes, retention time and the signature block.

Peptide Storage Guide

How to store lyophilised and reconstituted research peptides to preserve potency: temperature, light, moisture and time windows.

Peptide Purity Testing Explained: HPLC and Mass Spectrometry

Peptide purity testing explained: how HPLC measures purity, how mass spectrometry confirms identity, and why peptide research needs both results together.

Peptide Reconstitution Guide

Step-by-step procedure for reconstituting lyophilised research peptides with bacteriostatic water, including dose-per-unit math.

Understanding HPLC Testing

How HPLC quantifies peptide purity: column chemistry, gradient methods, detection wavelengths, and how to read the resulting chromatogram.

Peptide Stability

What degrades a peptide over time — oxidation, hydrolysis, aggregation — and how storage choices push the stability curve.

Proper Storage Procedures

Lab procedures for receiving, logging, storing and tracking research peptide inventory at 2–8°C and -20°C.

Laboratory Handling Techniques

Best practices for pipetting, aliquoting, weighing and dispensing research peptides without compromising integrity.

Mass Spectrometry Explained

ESI-MS and MALDI-TOF for peptide identity confirmation: ionisation, m/z, charge states and how to interpret the spectrum on your COA.

Chromatogram Interpretation

How to read peptide HPLC chromatograms: main peak, shoulders, baseline noise, deletion sequences and oxidation byproducts.

Peptide Purity Analysis

End-to-end purity analysis workflow: sample prep, method selection, calibration, integration, and reporting.

Research Methodologies

Choosing the right in-vitro model for peptide research: receptor binding, cell viability, signalling assays and stability studies.

Laboratory Testing Standards

Pharmacopoeial and ISO references for peptide testing: USP <1503>, Ph. Eur. peptide monographs, ISO 17025-aligned analytical practice.