GHK vs GHK-Cu: What Copper Binding Changes in Research

GHK and GHK-Cu are often listed side by side, but they are not interchangeable. One is a free tripeptide; the other is that tripeptide holding a copper(II) ion in a defined complex, which changes its mass, color, handling and identity testing. This guide walks through the GHK vs GHK-Cu question from a laboratory perspective: what […]

How to Calculate Peptide Concentration After Reconstitution

Research peptides usually arrive as a dry, freeze-dried powder sealed in a vial. Before that material can be used in an assay, it has to be dissolved in a known volume of liquid, and the moment you do that, one number starts to matter more than any other: the peptide concentration of the resulting solution. […]

What Is Semax? A Research Overview

Semax

A factual overview of Semax: its structure as an ACTH(4-10) analog, its origin in Russia, the research it appears in, and its regulatory status.