How we evaluate

We compare what the label and official sources say. We have not tested any product.

What we do

• Read the Supplement Facts panel on the maker's page or the Amazon listing: dose per serving, servings, form, other ingredients.
• Note whether a product carries an independent quality mark (for example USP or NSF) and link where it can be checked.
• Set the dose against official intake figures (NIH Office of Dietary Supplements) and its upper limit.
• Leave a cell "to be verified" when we have not read it at the source.

What we do not do

• We do not claim a supplement treats, prevents or cures anything.
• We do not tell you what to take. That is a decision for you and your clinician.
• We do not say a product is "best selling" without a dated Amazon source.

Prices

We show current prices only through Amazon's official tools.