A little clarity. A better choice.

Before you buy
another supplement,
make it make sense.

Do you need it? Does the evidence hold up? What are you actually paying for? Let’s work through it.

Free to use · No account needed · Sources you can check

THE LABEL, TRANSLATED.
EXAMPLE LABEL
Not a product recommendation

Supplement
facts.

Serving size2 capsules01
Magnesium120 mg02

as magnesium glycinate

Capsules in bottle6003
60 capsules ÷ 2 per serving
That’s 30 servings. Not 60.

A big number on the bottle
isn’t the whole story.

Evidence before enthusiasm.Safety before a shopping list.Sometimes, the best choice is to skip it.

START WITH YOUR QUESTION

What brought you here?

See all goals →

HAVE SOMETHING SPECIFIC IN MIND?

Look it up.

Search ingredients, answers, guides, and comparisons in one place.

The research library includes AI-assisted content. Check the original sources and our evidence standards.

FROM THE RESEARCH LIBRARY

New & updated.

Explore the library →

Recent supplement explainers, answers, and research tables. Check their original sources and limitations before using a finding.

An updated date records a page change; it does not establish medical review. Our evidence standards · Follow updates via RSS

YOU DESERVE TO KNOW WHY

Clear about the evidence.
Honest about the limits.

Research can be promising without proving a product works for you. We distinguish public health guidance from uncertain claims, link to sources, and tell you when a professional is the better next step.

How to judge the evidence →

A FEW GOOD QUESTIONS

Before you add
to your routine.

Do I actually need a supplement?

Sometimes, but the reason matters. A diagnosed deficiency, a restricted diet, or specific public health advice is a different situation from a vague promise of more energy. Our decision guide helps you choose a sensible next step, including when to speak to a clinician.

Does a higher dose mean a better product?

No. More can mean more side effects. Check the amount per serving, the units, and whether you already get the ingredient from other supplements. A study dose or a daily upper limit is not a personal recommendation.

Can you check whether my supplements interact?

This site cannot clear a supplement as safe with your medicines. Tell your pharmacist or clinician about everything you take, especially before surgery, during pregnancy, or if you have kidney or liver disease.

How reliable is the research library?

The library includes older, AI-assisted summaries that have not all been individually medically reviewed. Start with the source-linked decision guide and label checklist. Treat library articles as a starting point, and check their original sources before acting.

YOUR NEXT STEP CAN BE SIMPLE

A better decision starts
with a better question.

Let’s work through yours