Methodology

Each ingredient profile is a structured record covering identity and mechanism of action, deficiency and risk factors where applicable, dosing by population, form comparison, safety and contraindications, drug and supplement interactions, laboratory monitoring, regulatory status, and references. Tools and sections that are not relevant to a given ingredient are hidden rather than shown empty.

Product records are cross-referenced from the U.S. National Institutes of Health Dietary Supplement Label Database (DSLD), an open public resource. Products are linked to ingredient profiles to show real-world formulations. Product counts reflect items recorded as on-market at the time of the most recent synchronisation.

Where useful, ingredient identity is enriched with standardised chemical references (for example, synonyms, CAS numbers, and substance identifiers) drawn from public substance registries, to disambiguate names and support search.

The LabelIndex section catalogues third-party certification and quality programmes (for example, USP Verified, NSF Certified for Sport, Informed Sport) and describes what each programme does and does not test, so consumers can tell a meaningful seal from a marketing claim.

See our Editorial & Evidence Policy for how safety classifications and evidence grades are assigned.

Product and brand counts are refreshed on a recurring synchronisation. Ingredient profiles are revised as evidence changes; each carries a last-reviewed date. The platform version is shown in the footer.

Product data reflect labelled contents, not independent laboratory assay. Absence of a product or certification from the database does not imply a judgement about it. The dataset is weighted toward the U.S. market via DSLD and may under-represent products sold only in other regions.