Quality & Testing

Quality & Testing 15 Oct 2026 1 min read

How to read a certificate of analysis for herbal supplements

A certificate of analysis shows what a laboratory found when it tested a product. Here is how to read one: heavy metals, microbial limits, pesticide residue and marker compounds.

Quality & Testing 30 Sep 2026 3 min read

How to tell if shilajit is pure: a buyer’s checklist

Home tests for shilajit are unreliable. Here is what actually tells you whether a shilajit product is purified, genuine and safe to use.

Quality & Testing 25 Aug 2026 2 min read

Heavy metals in herbal supplements: what you should know

Why heavy metals can occur in herbs, which ones are tested for, what the limits mean, and the questions to ask any brand.