Laboratory Practice
Peptide Testing and Purity: How to Read a Certificate of Analysis
Peptide testing explained: how to read a certificate of analysis field by field, what HPLC purity and net peptide content mean, and the red flags to check.
Research notes
Research, clearly explained.
Get familiar with research peptides, how they're made, and how to read the documents that come with them.
12 articles
Peptide Science
Types of Peptides: How Peptides Are Classified
Peptides are classified by chain length, structure, biosynthetic origin, source and chemistry. A clear guide to oligopeptides, polypeptides and lab grades.
Peptide Science
How Peptides Are Made: Solid-Phase Peptide Synthesis Explained
How peptide synthesis works, step by step: solid-phase peptide synthesis, Fmoc chemistry, resins, coupling reagents, HPLC purification and lyophilization.
Peptide Science
Semax vs Selank: How the Two Compounds Differ
Selank vs Semax compared on structure and mechanism: different parent molecules, a shared Pro-Gly-Pro motif, and what the comparative literature establishes.
Peptide Science
Selank: Structure, Mechanism and Research Context
Selank explained: the tuftsin-derived Thr-Lys-Pro-Arg-Pro-Gly-Pro heptapeptide, its molecular mass, the pathways the literature examines, and evidence limits.
Peptide Science
Semax: Structure, Mechanism and Research Context
Semax peptide explained: the ACTH(4-7) Pro-Gly-Pro heptapeptide sequence, molecular mass, the pathways the literature examines, and the limits of that evidence.
Peptide Science
Copper Peptides: Research-Grade GHK-Cu vs Cosmetic Formulations
Copper peptide explained: how INCI copper tripeptide-1 in a cosmetic serum differs from characterised research-grade GHK-Cu in purity, format and regulation.
Peptide Science
GHK-Cu Research: What the Published Literature Reports
A primary-source review of GHK-Cu peptide research: the models used, the endpoints measured, reported concentrations, and what cell studies show about copper.
Peptide Science
GHK-Cu: The Copper-Binding Tripeptide Explained
GHK-Cu peptide explained: the Gly-His-Lys sequence, the copper(II) coordination site, molecular mass, and what the in-vitro literature actually examines.
Laboratory Practice
How to Store Peptides: A Laboratory Guide to Peptide Storage and Stability
How to store peptides in the lab: degradation chemistry, temperature tiers, freeze-thaw, moisture, containers, and the records that keep results traceable.
Peptide Science
What Are Peptides? A Beginner's Guide to Peptide Science
What are peptides? A clear beginner's guide to amino acids, peptide bonds, sequence notation, and how peptides differ from polypeptides and from proteins.
Regulatory & Compliance
Are Peptides Legal? RUO Status and What the Law Actually Says in 2026
What "legal peptides" and "research use only" actually mean under US law, what the 2026 FDA advisory vote did and did not change, and how to read a supplier.
