Research library

Written for the person running the assay

Chemistry, methodology and handling detail that changes results. Everything here stays on the laboratory side of the line — we publish no dosing guidance and make no health claims.

All articles Compliance1 Purity & Testing3 Peptide Science3 Lab Fundamentals4

Purity & Testing

How to Read a Peptide Certificate of Analysis (Without Taking It on Faith)

A COA is only as good as your ability to interrogate it. Here is what each section actually tells you — and the four red flags that should stop an order.

Aug 2, 20264 min read

Purity & Testing

HPLC and Mass Spectrometry: How Peptide Purity Is Actually Measured

Two techniques, two different questions. Knowing which answers which is the difference between reading a COA and understanding one.

Jul 15, 20263 min read

Purity & Testing

Designing a Dose-Response Study for Peptides In Vitro

Concentration ranges, vehicle controls, adsorption losses and the curve-fitting decisions that quietly determine your EC50.

Jun 3, 20264 min read