PEPTIDE RESEARCH BLOG
Reference articles on peptide chemistry, analytical testing and certificates of analysis, laboratory handling, and how to read scientific evidence — written for research teams.
Research use only. These articles are educational and are not medical advice.
Latest Articles
GHK-Cu and Collagen Research: What a Fibroblast Study Can Tell Us
Collagen claims are easier to evaluate when you know what an experiment measured. Here is a closer look at an early GHK-Cu study.
MOTS-C and Cellular Stress: The Science of Mitochondrial Communication
MOTS-C research explores how cells respond when energy demands change—and how signals can travel from mitochondria to the nucleus.
KPV Peptide Research: Why Cellular Uptake Matters
A small peptide raises a useful scientific question: how does getting inside a cell influence what happens next?
HPLC Versus Mass Spectrometry in Peptide Testing
HPLC vs mass spectrometry for peptides: what each method answers, its limits, and why orthogonal methods together give a stronger analytical picture.
Peptide Purity Versus Net Peptide Content
Chromatographic purity and net peptide content measure different things. How water, counterions, and salts affect vial mass, with an illustrative calculation.
Choosing Research Peptides for a Study: A Practical Selection Framework
A structured approach to matching compound, purity specification, quantity, and documentation to the question a laboratory is actually asking.
COA Tested Peptides: What Third-Party Verification Actually Proves
What a third-party certificate of analysis verifies, what it does not cover, and how to tell a meaningful report from a decorative one.
Cost Per Milligram: How to Compare Research Peptide Prices Honestly
Vial price tells you little on its own. Normalise research peptide pricing by net peptide content, purity, and documentation before comparing suppliers.
HPLC Explained for Peptide Purity Testing
How reversed-phase HPLC separates peptide mixtures, what area-percent purity measures, and why a large main peak alone does not confirm identity.
Mass Spectrometry for Peptide Identity Confirmation
How mass spectrometry confirms peptide identity: ionization, mass-to-charge ratio, charge states, deconvolution, and the limits of intact-mass confirmation.
Semax vs Selank: Comparing Two Regulatory Peptides in Neuroscience Research
Two short peptides from related research traditions with different parent molecules and different reported signaling profiles.
Peptides vs Small Molecules in Research: Trade-Offs That Shape Study Design
Selectivity, stability, delivery, and manufacturing differences that determine which molecular class fits a research question.
Reviewing Materials for a Study?
Browse available research materials and current lot documentation.