FactoWiki

Clear answers before you buy

Health facts and supplement guides, in plain English.

FactoWiki explains what's actually in a supplement, what the research does and doesn't support, what it costs, and who should be careful — so you're not relying on a sales page to make a health decision.

Popular: Berberine Brain support Bladder health Collagen Compare

What FactoWiki does

Evidence first

We summarise what published research actually shows about each ingredient — including its limits — and link the sources.

Ingredient wiki

Plain-English guides to how common supplement ingredients work, the doses studied, and who should be cautious.

Honest product guides

What the vendor claims versus what the evidence supports, with pricing, safety and alternatives laid out clearly.

Safety forward

Clear notes on interactions and who should avoid a product — and a reminder to talk to a doctor first.

Ingredient Wiki

Browse all ingredient guides →

Supplement & product guides

Browse all product guides →

Compare

See supplements side by side.

Category, form, price, guarantee and who each is for — laid out in one table so you can weigh your options before you buy.

Ingredients vs Price vs Safety

Compare supplements →

How we review supplements

Every guide is researched against published sources, written in plain language, and reviewed by the FactoWiki Editorial Team for clarity and source accuracy before it is published. We describe what research suggests — never what we wish it showed — and we avoid words like "cure," "guaranteed" or "miracle." Read our full editorial policy to see how we work.

Safety first

FactoWiki provides educational information, not medical advice. Supplements can interact with medications and aren't right for everyone. Always speak with a doctor or pharmacist before starting one — especially if you are pregnant, nursing, taking medication, or managing a health condition. See our medical disclaimer and affiliate disclosure.