Peptide Research Blog
Reference articles for qualified researchers. Every article on this site is written about peptides sold strictly for in-vitro laboratory research use only — not for human or animal use.
Tirzepatide vs. Semaglutide vs. Retatrutide: A Research-Only Comparison Guide
Three of the most discussed incretin-pathway peptides in modern metabolic research. A clear comparison of single, dual, and triple receptor agonism — and how researchers compare them in the lab.
Read articleGHK-Cu in Skin and Fibroblast Research: A Complete Literature Overview
GHK-Cu is a small copper-binding tripeptide that appears throughout the dermatology and fibroblast biology research literature. A balanced, research-only overview of what is studied and why.
Read articleHPLC and Mass Spectrometry: How Peptide Purity Is Actually Measured
Reverse-phase HPLC and mass spectrometry are the two workhorse techniques behind every credible peptide purity number. Here is what they measure, how they work together, and how to interpret the results.
Read articleHow to Read a Peptide Certificate of Analysis (COA): A Researcher's Guide
Every research-grade peptide should ship with a lot-matched COA. Here is a full breakdown of what each section means, what numbers to expect, and what to insist on from a supplier.
Read articlePeptide Storage and Reconstitution: A Complete Best-Practices Guide for the Lab
A practical, end-to-end guide to handling lyophilized research peptides: receiving, solvent choice, reconstitution technique, aliquoting, freeze-thaw, working solution stability, and documentation.
Read articleBPC-157 Research Overview: What the Body Protective Compound Literature Actually Says
A balanced look at BPC-157 — what it is, where it appears in the peer-reviewed literature, the mechanisms researchers have proposed, and how to think about quality and handling in the lab.
Read articleGLP-1 Receptor Agonists in Research: Semaglutide, Tirzepatide, and the Incretin Axis Explained
An accessible deep-dive on GLP-1 receptor pharmacology, how semaglutide and tirzepatide are studied as reference compounds, and what the published literature actually reports about incretin signaling.
Read articleWhat Are Research Peptides? A Complete Plain-English Primer for 2026
A clear, modern explanation of what research peptides are, why scientists study them, how research-grade differs from pharmaceutical-grade, and what 'for research use only' actually means.
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