Lab Insights
Peptide stability: how storage and handling impact purity
Lyophilized peptides are more fragile than the marketing suggests. What degradation looks like in our testing data.
Guides
Evergreen education: how to read laboratory documentation, evaluate evidence, and understand the compounds and companies we cover.
How to read a certificate of analysis — and how to spot a fake one
A COA is only as good as the laboratory behind it. A practical walkthrough of chromatograms, mass-spec traces, and red flags.
Education
Why we publish failed tests — and what happens after we do
Disputes, retests, legal letters, and score consequences: the afterlife of a failed verification.
TransparencyUnderstanding peptide reconstitution: concentrations, diluents, and stability windows
The chemistry behind reconstitution choices, and what published stability data actually covers.
EducationWhat "pharmaceutical grade" actually means — and what it legally doesn’t
The most abused phrase in peptide marketing, unpacked.
EducationHow The Peptide Institute tests products: our laboratory methodology, in full
Anonymous purchasing, chain of custody, laboratory selection, and how results feed the Index Score.
MethodologyThe economics of independent testing: why almost nobody does it
What a single verified test actually costs, and why review sites so rarely test anything.
TransparencyThe Peptide Institute Weekly
Research. Testing. Regulation. No hype.
One email a week: new study summaries, the latest independent lab results, ranking movements, and regulatory developments that matter.
- New research, summarized in plain English
- Independent lab results as they publish
- Score and ranking movements