How ESX Researches Product and Ingredient Topics
Primary Sources First
When a guide makes a factual claim, we prefer primary sources. Depending on the topic, that means U.S. government agencies such as the FDA, NIH Office of Dietary Supplements, NCCIH, EPA, and DOE, recognized standards organizations, and official manufacturer documentation for manufacturer-specific facts.
Ingredient Research vs. Finished Products
Ingredient research is kept separate from finished-product claims. A study about an ingredient does not automatically describe what a specific commercial product does. Our ingredient guides explain what a term means, and product guides describe what the manufacturer currently says about that product.
Checking Current Labels
Formulas change. When a current official label is available, our guides describe what that label says and note that readers should always review the current product label before purchasing. We avoid claims that a finished product's label does not support.
What We Avoid
- Claims unsupported by the finished product or by the cited source
- Invented testing, surveys, expert quotes, or personal experiences
- Rating products or comparing prices
Update Process
Pages may be updated when product information changes, new authoritative guidance is published, or a factual correction is needed. Updated educational pages show a revision date, and only meaningful revisions change the updated date shown on a page.
Correction Process
If you notice an error or an outdated statement, contact ESX and include the page URL and the statement you believe should be reviewed. We review correction requests and update confirmed errors.