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Plain-language guides to the documentation behind research peptides: what a COA proves, what it leaves out, and how to store lyophilized material.
Quality education
How to Read a Peptide Certificate of Analysis
What HPLC purity, mass-spec identity and lot numbers on a peptide COA actually tell you, and the red flags that mean a report should not be trusted.
7 min read →Quality education
Net Peptide Content vs Gross Weight: What a "10 mg" Vial Contains
Why a lyophilized peptide vial labeled 10 mg usually holds less than 10 mg of peptide, and how counterions and water change the math.
5 min read →Lab handling
Storing Lyophilized Peptides: Temperature, Light and Moisture
Laboratory storage guidance for lyophilized research peptides: temperature tiers, oxidation-sensitive residues, condensation and shipping exposure.
6 min read →Quality education
What "99% Purity" Really Means on a Research Peptide
HPLC purity, identity and net content are three different measurements. Here is how to tell whether a purity claim is backed by data.
4 min read →
