Peptides and Proteins: What Is the Difference?

Introduction Peptides and proteins are closely related: both are made from amino acids joined by peptide bonds. The difference is often described in terms of size and structure, but the boundary is not always exact. Understanding the terms is a useful starting point for reading biology and research literature. The Role of Amino Acids Amino […]
Semax vs Selank: What Does the Research Literature Compare?

Introduction Semax and Selank are distinct synthetic peptides that appear in scientific and online discussions about neurological research. Their names are sometimes presented side by side, but a fair comparison needs more than a list of claimed effects. It starts by asking what was studied, in which model, and how the results were measured. Two […]
Types of Peptides: A Beginner’s Guide

Introduction Peptides are small chains of amino acids, the same basic building blocks used to make proteins. They appear in many areas of biology and are studied for different reasons, from understanding cell signalling to exploring how molecules interact. The word “peptide” describes a broad group of molecules, not one single type of product. What […]