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RESEARCH JOURNAL

Peptide Research Blog

In-depth New Zealand-based research references for the peptides labs are searching most — tirzepatide, semaglutide, BPC-157, GHK-Cu and more.

7 articles.

Retatrutide: A Research Reference for the Triple Agonist
METABOLIC RESEARCH

Retatrutide: A Research Reference for the Triple Agonist

Retatrutide is the most mechanistically ambitious incretin-class molecule under active study — a single backbone engaging three separate receptors. Here is the research reference.

January 12, 2026
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Reading a Peptide Certificate of Analysis: HPLC & LC-MS Explained
LAB REFERENCE

Reading a Peptide Certificate of Analysis: HPLC & LC-MS Explained

A Certificate of Analysis is only useful if you know how to read it. Here is a field-by-field walkthrough of HPLC and LC-MS data on a research peptide COA.

Peptide Reconstitution & Lyophilisation: Laboratory Handling Reference
LAB REFERENCE

Peptide Reconstitution & Lyophilisation: Laboratory Handling Reference

Lyophilised peptides are chemically stable but handling errors during reconstitution are the single largest source of degraded research material. Here is the reference.

GLP-1 vs GIP vs Glucagon Receptor Pharmacology: A Research Comparison
METABOLIC RESEARCH

GLP-1 vs GIP vs Glucagon Receptor Pharmacology: A Research Comparison

Three receptors, three signalling pathways, and an entire generation of incretin-class research peptides built around engaging them. Here is the comparative pharmacology.

BPC-157 & TB-500: A Tissue-Repair Research Literature Review
TISSUE REPAIR RESEARCH

BPC-157 & TB-500: A Tissue-Repair Research Literature Review

BPC-157 and TB-500 are two of the most frequently co-studied peptides in tissue-repair research literature. Here is what the published mechanistic data actually describes.

GHK-Cu: The Coordination Chemistry of a Copper-Binding Peptide
PEPTIDE CHEMISTRY

GHK-Cu: The Coordination Chemistry of a Copper-Binding Peptide

GHK-Cu is one of the few widely studied research peptides defined as much by its metal-binding chemistry as by its amino-acid sequence. Here is the coordination chemistry.

Research-Use-Only Compliance: Importing & Handling Peptides in New Zealand
COMPLIANCE

Research-Use-Only Compliance: Importing & Handling Peptides in New Zealand

Research-use-only classification carries specific documentation and handling implications for New Zealand laboratories. Here is a practical compliance reference.