Search the NIH Dietary Supplement Label Database — over 200,000 labels exactly as filed — to check a product’s brand, form, and ingredients, then compare the real cost per dose. Free, sourced from the NIH Office of Dietary Supplements.
Type a product, brand, or ingredient to search the NIH label database.
The Dietary Supplement Label Database (DSLD) is a free, public database run by the NIH Office of Dietary Supplements. It holds the full label information — brand, form, ingredients, and amounts — for well over 200,000 supplement products exactly as the labels were filed. This tool searches it so you can verify what a product actually contains instead of relying on marketing.
No. Dietary supplements are not FDA-approved for safety or effectiveness before sale. A label being in the DSLD only means the label has been recorded — it is not a quality, purity, or efficacy check. For independent product testing, look for USP or NSF certification, and see our third-party-testing notes. Not medical advice.
The DSLD keeps historical labels, so a match may be a product that is no longer sold. We flag those. If you are shopping now, focus on on-market entries, and use our cost-per-dose rankings to compare what you can actually buy today.