Supplements, skincare and medicines
Paste the label. For each claim on it, see what studies found, how strong they are, and what people say. In plain words.
Paste a label. See what the research says about each claim.
Not for emergencies. If it is sudden or severe, call 112. This is not medical advice.
How it works
Copy the text from the pack or the product page. One ingredient name works too.
Every claim is matched to its ingredients and checked against published research, strongest studies first.
A plain verdict for each claim, the evidence breakdown behind it, and what people say.
A real report
This is a real check of one of our example labels. Run it yourself to open every chart and study.
Example label
Ashwagandha 600 mg · Black pepper extract 5 mg
Stress: “Helps reduce stress and anxiety” · ashwagandha
Likely to work
Good studies agree that it helps.
Of the 16 studies we read that answered this, 13 found it helped. 3 found it did not help. Researchers found 13 clinical trials in people and 6 reviews that combine many studies.
Types of study, most reliable first. 91 papers on this.
Studies we read
About 6 in 10 people who said how it went said it helped.
Side effects people mention most: anxiety or agitation, mood or emotional blunting, thyroid. Self-reported, not medical advice. 64,176 posts from 2011 to 2026.
Half of the people who mentioned a dose took between 300 and 1,000 mg a day.
This product: 600 mg per serving. That is in the usual range people report.
Saved from a real check of the example label on 2 November 2026. Numbers change as new research and posts come in.
What you get
A plain verdict for each claim, from “Likely to work” to “Unlikely to work”. Wording that names nothing measurable is marked “Too vague to check”.
How many studies there are and what kind: reviews that combine studies, trials in people, animal or lab work. Plus what the studies we read found.
How it went for people who took it, and the side effects they mention. Marked as self-reported and kept apart from the verdict.
The amounts people say they take, with the dose on your label marked, so you can see if it is low, usual or high.
What works?
Describe it in a few words. See which conditions may fit, what the research says helps, and what people say.
Not for emergencies. If it is sudden or severe, call 112. This is not medical advice.
Ask what worksWho it is for
Check a label before you buy.
A quick evidence summary to share with a client.
Check label claims against the research before you publish.
Fact-check a supplement or skincare claim before it runs.
Where the answers come from
Every count comes from the Prism research corpus and Prism social signals. These are the live sizes.
The live sizes could not be loaded just now.
Questions
No. It shows what published research and people’s reports say. Talk to a clinician before you start or stop anything, especially if pregnant, on medication, or with liver, thyroid or kidney conditions.
Fixed rules turn the study counts and the studies we read into one answer, from “Likely to work” to “Unlikely to work”. Strong studies count for more than many weak ones, and the same research always gives the same answer. See every step
Supplement and skincare labels, a single ingredient name, or what is in a medicine as printed on the strip, like Paracetamol 500 mg + Caffeine 65 mg. A brand name alone does not say what is inside, so it is not enough.
Wording such as “supports a sense of wellness” does not name anything studies can measure, so there is nothing to check it against.
No. Studies test ingredients, not your product. It does not test purity or whether the amounts match the label, and it does not check interactions with medicines.
What people write about taking an ingredient: how it went, the doses they mention and the side effects they name. It is self-reported experience, not proof, and it never changes the verdict.
Yes, a few checks a day are free. If you check many products, the Prism API gives you the same research at any volume. Read the API guide
Paste the text from any supplement or skincare label, or type one ingredient.