Health-claim verification gauge · Est. 2026 · Seoul
Measuring the gap
between claims and evidence
Health information is everywhere; places that show the sources behind the conclusion are rare. Chamgap removes exaggeration from health claims sold in Korea and publishes the evidence grade and sources by measuring the gap between the claim and the evidence. We sell nothing to consumers: no products, no ads, no affiliate links. That is the product.
CHAMGAP — measuring the gap between claims and evidence
What Chamgap Does
"Collagen is good for skin" is not a claim that can be judged. "Taking 2.5-10 g/day of low-molecular collagen peptides for at least 8 weeks improves skin hydration and elasticity" is a claim that can be judged. We split claims into ingredient x effect x dose, review human studies by evidence hierarchy, assign an A-to-F evidence grade, and attach every paper and search process used in the review as the receipt. What the gauge measures, the gap between the effect claimed and the range supported by evidence, is our work.
If evidence is absent, "absent" is the conclusion. We do not fill gaps with guesses. If we are wrong, we leave the correction visible and correct it publicly. Read the full methodology
Five Promises
- We do not sell to consumers. We do not take product sales, affiliate links, advertising, or sponsorships. Ever.
- We do not speak without receipts. Every verdict carries the evidence list and search process.
- We say when we do not know. If evidence is absent, absence is the conclusion.
- When wrong, we correct in documents. Correction history is accumulated, not erased.
- We do not decide for readers. We organize and report facts. We do not say "buy" or "do not buy"; that decision belongs to readers and, when needed, legal or medical professionals.
Two Tracks
The public standard is free forever. Operating costs come from the business monitoring service. This structure separates the side that pays from the side that receives grades.
Verdict Database
Evidence grades and receipts for ingredient x effect x dose claims. Anyone can read them, forever, for free.
View verdictsDistribution-Channel Monitoring Reports
We find and report suspected noncompliant wording used under your brand name by sellers, reviewers, and influencers before enforcement arrives.
Service overviewWe Are Still Accumulating
We do not publish verdicts that have not completed approval and verification. Public verdicts have passed the process: draft, two blind cross-checks, and rejudgment when grades diverge. The truthfulness of this number matters more than how fast it rises.
Category Hubs
Contact
Tell us if there is a health claim you want reviewed, if you found an error, or if you want to ask about monitoring. Error reports are the most welcome email.