Blogs

Practical articles on documentation, quality and good laboratory practice.

Lab Testing29 October 2026

Peptide Identity, Content and Purity Are Three Different Questions

One "tested" label can hide three different questions. Here is how to tell identity, content and purity apart and ask a supplier for exactly the evidence you need.

Lab Testing28 October 2026

Quoting a GLOW Purity Figure in Your Records Without Overstating It

A purity percentage is the easiest number in a report to copy and the easiest to misuse. Here is how to write it into your lab records with the right context.