Editorial Policy

Sourcing standards

We prioritize primary and authoritative sources: the NIH Office of Dietary Supplements fact sheets, PubMed-indexed studies, FDA regulations and monographs, the Cosmetic Ingredient Review (CIR), and PubChem. Commercial sources, blogs, and brand marketing pages are never used as the basis for factual claims.

• Every benefit, dosage, and safety statement traces to a cited source
• References appear on every ingredient page with clickable links
• We prefer randomized controlled trials and systematic reviews over single small studies

Evidence ratings

Each claimed benefit carries one of three ratings, describing how much and how consistent the human evidence is.

Strong evidence: multiple consistent randomized trials or a broad scientific consensus. Moderate evidence: some trials with consistent direction, or strong evidence in specific populations. Emerging evidence: preliminary findings from small trials, mechanistic studies, or mixed results.

Review process

Content is produced in two stages. Drafts are written from our source briefs, then independently reviewed by the IngredientWiki Editorial Team, which checks every factual claim against its reference before publication. Every page carries its publication date and the date of its most recent review.

Corrections

Medicine and cosmetics science move, and so do regulations. We re-review pages on a rolling schedule and update them when new evidence warrants. If you spot an error, tell us via the contact page — verified corrections are applied and the review date is updated.