Site Directory
Everything in PlainVitamins, in one place: supplements A-Z, brand directories, ingredient categories, product types, and editorial guides. According to the National Institutes of Health Office of Dietary Supplements, the underlying Dietary Supplement Label Database (DSLD) catalogs 113,539 product labels as of April 2026 across the full U.S. market. Every link below leads into that public-record data. How we compile this data.
Primary Sections
Supplements A–Z
Alphabetical directory of supplement products by first letter of the product name.
Supplements by Type
Top Brands Directory
Top Ingredients Directory
Reference Pages
Methodology
This directory indexes every primary section of PlainVitamins and surfaces the most-cataloged brands, ingredients, and product types from the Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (DSLD). A–Z counts reflect the number of product filings whose declared name starts with each letter, computed directly from the DSLD export at build time, no editorial weighting. Product type rollups use the DSLD's nine classification codes described in the site methodology.
"Top brands" and "top ingredients" are ordered by filing count and product count respectively. Filing count is a visibility signal, not a quality signal, a brand with many filings in the DSLD has simply submitted more labels than one with fewer filings. Daily Value framing throughout the site references Source: FDA 21 CFR 101.9, Reference Daily Intake (RDI) values.
Not medical advice. The DSLD is a label database, not an FDA approval list, supplements are regulated under the Source: Dietary Supplement Health and Education Act (DSHEA), 1994, 21 U.S.C. § 321(ff), which does not require pre-market approval for safety or efficacy. Information on this site is for educational and reference purposes only. Consult a licensed healthcare provider before starting, stopping, or combining any dietary supplement, especially if you are pregnant, nursing, take prescription medication, or have a medical condition.