The journal
Notes from the lab.
What we learn from thousands of samples, written plainly for the people making decisions with it.
Testing6 min read12 Jun 2026
What a COA Actually Proves, and What It Does Not
A certificate is one data point from one moment in time. Here is how to read it without being misled by it.
Read the piece →Data5 min read
Underdosing Is the Quiet Failure of the Peptide Market
Purity gets the attention, but our data shows quantity is where buyers lose the most value.
04 Jun 2026Methodology7 min read
How We Source Blind Samples to Keep Vendors Honest
When a vendor knows a sample is headed to a lab, the sample stops being representative. So we buy like a normal customer.
21 May 2026