Tag
coa-testing
7 articles
Best NAD+ research vendors
USA research vendors for NAD+ with an emphasis on measured content assays, lot IDs, and transparent shipping notes.
Best documented peptide vendors
USA research peptide vendors that prioritize public certificates, lot IDs, and conservative claims language.
How to read a peptide COA
Plain-language walkthrough of certificate of analysis fields research buyers should verify before ordering peptides.
Third-party peptide testing explained
What “third-party tested” should mean for research peptides — independent labs, lot linkage, and limits of a single PDF.
HPLC purity vs content assays
Why peptide purity percentages and measured content assays answer different questions — and which one your purchasing SOP should demand.
Fake peptide COA red flags
Practical red flags for forged or recycled peptide certificates — mismatched lots, undated PDFs, and labs that do not resolve.
What labs test on research peptides
A buyer-oriented overview of common research peptide assays — identity, purity, content, and optional sterility/endotoxin panels.