What we write about
Analytical chemistry, lab handling and how to read a test report. Every guide is about the material in the vial and how it is tested, never about what it does in a body.
What we never write
- Health or performance claims.
- Effects in people or animals.
- Dosing, administration, or protocols for use in people or animals.
- Testimonials or before-and-after stories about use.
We don't answer questions about using our products on people or animals. They are sold for laboratory research only.
How we write
- Plain English first. Technical terms are explained the first time they appear, and the glossary covers the words on our reports.
- We name the standards behind what we say: ISO/IEC 17025 for testing labs, USP and Ph. Eur. chapters for test methods, and ICH Q2 for method validation.
- A second person on the team checks every guide before it is published.
- Every page shows the date it was last updated.
Corrections
Found something wrong? Send it through our request form and choose "Something else". We fix confirmed errors and record each change below, with its date.
Update history
| Date | Change |
|---|---|
| Oct 29, 2026 | Published four guides: how to check a certificate of analysis, HPLC and mass spec, purity vs. peptide content, and endotoxin. Moved the solution calculator to its own page. Published this policy. |