Guides

Straightforward explainers on reading a supplement label, understanding NRVs, and what independent testing actually checks — no product outcomes claimed, just how to read what's in front of you.

01 How to find the batch number on a bottle A quick guide to locating the batch or lot number most supplement b... 02 What a certificate of analysis can tell you A CoA is a specific, batch-level document — not a general seal of a... 03 How to avoid unnecessary nutrient overlap Taking several supplements at once can mean taking more of the same... 04 Why ingredient form matters The same nutrient can appear on a label in several different chemic... 05 What NRV means — and what it doesn't mean The percentage next to most vitamins and minerals is a reference po... 06 Active ingredient versus compound weight Why "500mg" doesn't always mean 500mg of the thing you're actually ... 07 How to compare two supplement labels A simple framework for reading past the front of the pack — ingredi...