How we review
Every fact is labeled for what it is.
Each review records what the brand publishes on its label and product pages, with the date we checked. Nothing is filled in from memory: if a price, founding year, or dose is missing, the review says so.
Three labels tell you how much weight a sentence can carry, so you always know what came from the brand and what is our judgment. This page was last reviewed October 27, 2026.
Our review process
- 1
Open the label
We open the brand's product pages and supplement facts panels, the same pages a shopper sees.
- 2
Record the facts
Ingredients, forms, amounts, serving size, and price are written down with the date we checked them.
- 3
Check the science
Health statements are checked against the NIH Office of Dietary Supplements, the CDC, Cochrane reviews, and peer-reviewed research.
- 4
Score and publish
Each brand gets cost, quality, and targeting sub-scores, and the overall score is calculated from the published weights.
What each label means
As published
The figure was on the brand or retailer page we opened, on the date shown.
Claimed
The company says it, and we did not open a certificate or a study that confirms it.
Directory note
The sentence is our judgment, including every score.
Sources we use
- NIH Office of Dietary Supplements fact sheets
- CDC, folic acid guidance
- Cochrane Library systematic reviews
- PubMed, for peer-reviewed trials and meta-analyses
- Each brand's own product pages and supplement facts panels
What would change a score
A new shelf price, a blend amount that is now printed, a reformulated label, or a testing certificate we can open. Star ratings and testimonials would not, because the score is based on the label.
Who writes and checks the reviews
An AI system helped draft and organize these pages. Reviewer names and credentials are not listed in this edition.
If something is wrong
Send the page and the corrected figure, with a link to the current label or price, through the contact page.