Tired of being paranoid about the health products you take?
That stress is real — you should not have to guess what is actually backed by research. Resar ties every product claim to indexed studies with Evidence, Safety, Effectiveness, and Research Confidence scores, so you can decide with receipts instead of marketing.
Already taking a supplement? From your account, paste any Amazon link — we run the same evidence pipeline privately and track progress under My evidence reviews.
Early registry — 25 evidence-reviewed products. Scores come from cited papers, not star ratings.
Scores reflect cited research, not medical advice. Products are not evaluated to diagnose, treat, cure, or prevent disease.
Products reviewed
Claims checked
Papers indexed
Research gaps flagged
Avg. Evidence Score
Evidence, Safety, Effectiveness, Research Confidence, and Product Fit are scored separately so strong science is never confused with a bad listing — and score changes are logged with reasons you can review.
Browse ranked productsLimitations, sample sizes, side effects, and evidence directness stay in the interface — not buried in generic AI copy — because informed decisions need honest friction.
How scoring worksDescribe your health goal in plain English — sleep, joints, recovery, and more. Goal match turns it into structured criteria, then ranks products by evidence fit and shows why each one matched.
Open Goal matchEvery Sunday, published listings whose scores are 7+ days old are re-queued for refresh against PubMed, Crossref, OpenAlex, and related indexes. New studies can update linked papers, summaries, and scores.
See the pipelinePut products side by side on evidence, safety, effectiveness, and fit — with the same cited research visible for each listing so you are not comparing marketing blurbs.
Open CompareBuild a supplement stack in one view, check overlap and timing, and see combined evidence context instead of guessing whether products play well together.
Open Stack BuilderPaste an Amazon link from your account — vitamins, powders, anything you already own. Resar runs the same research pipeline privately with scores and citations, and you can track every request under My evidence reviews.
Open your accountNothing publishes without linked research, summaries, and disclosures. Affiliate commissions never move evidence or safety scores. AI drafts summaries; human review gates what goes public — commerce stays labeled beside the buy button.
Conflicts policyI grew up watching my mom follow little health rituals she learned as a kid — things you do because someone once said they were good for you.
Certain teas at certain times. Remedies passed down without a name attached to them. Habits that survived because they felt caring, not because anyone in our family could explain what they were supposed to do.
When one of us finally asked why, she would pause and admit the truth gently: she does not really know. She was taught. It felt right. It was what you did. And after decades, the “why” had quietly disappeared — but the routine stayed.
Nobody was trying to mislead anyone. That is how folklore works. Love, memory, and repetition get braided together until questioning feels almost disrespectful.
But the same pattern is everywhere now — just with better packaging. A supplement label that sounds scientific. An influencer stack. A product that promises calm, clarity, or longevity because the marketing said so, not because you have ever seen the study.
“Tired of being paranoid about what you take should not mean accepting things blindly.”
We built Resar for people who want to care about their health without carrying that low-grade anxiety — the feeling that you might be doing something useless, or worse, trusting a confident claim nobody can verify.
What we believe
Browse ranked products with cited papers, five separate scores, and limitations shown up front — or tell us your goal and let Goal match find what the research actually supports. Already own something? Check your own products from your account with a pasted Amazon link.
Scores reflect cited research, not medical advice.
In the registry
Highest evidence scores in the registry right now — open any product page for papers, scores, and claim trails.
