Our standard

How we choose ingredients

Most supplement shelves are built on marketing. Ours is built on PubMed. Here is the exact standard every ingredient must meet before it can appear in a Science Proof Precision Pack.

The review process

1. 1

   We start with the question, not the product

   Each ingredient review begins with a health goal — sleep, energy, gut health, hair, hormones — and a systematic look at what the published human evidence actually supports.

2. 2

   We grade the evidence

   Meta-analyses and replicated randomized controlled trials carry the most weight. Single small studies and early-stage research are labeled as such. Ingredients with only animal or in-vitro data don't make the cut.

3. 3

   We check the form and the dose

   Magnesium oxide and magnesium glycinate are not the same thing. We match the specific form and dose used in the successful trials, and we reject under-dosed “label decoration.”

4. 4

   We verify what's in the bottle

   Before an ingredient is listed, its manufacturing and testing documentation is reviewed — cGMP certification, third-party assay results, and allergen status.

5. 5

   We re-review, continuously

   Science moves. When new high-quality evidence changes the picture — in either direction — the catalog changes with it.

Check our work

You should never have to take our word for it. These are the same independent sources we use when reviewing an ingredient:

• PubMed — the U.S. National Library of Medicine's index of peer-reviewed biomedical research
• Cochrane Library — independent systematic reviews of health interventions
• NIH Office of Dietary Supplements — fact sheets on vitamins, minerals and botanicals
• Examine — independent, citation-driven analysis of supplement research

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.