Sigñal surfaces a brand's claim score directly on the product page — before the money leaves your pocket. Red, Yellow, or Green. No account needed.
Works on supplements, skincare, wearables, neurotech, recovery, and performance brands. Visit the page — the extension fires automatically.
Red, Yellow, or Green — plus six dimension scores: specificity, mechanism, evidence presence, evidence strength, effect reality, and consumer distortion.
Scores update when brands change their pages. The extension shows score trajectory so you can see whether a brand is improving, stable, or declining.
Open the comparison mode for any two or three brands you're deciding between. One click from any brand score panel.
Every scored claim is shown individually. Aligned, Partial, Gap, or Missing — so you know exactly which marketing language has visible support.
No account required to start. No login, no onboarding, no subscription prompt. Install and it works. Free.
Navigate to a supplement, skincare, or wearable product page as you normally would. The extension runs in the background — no button to click.
The extension reads visible page text — brand name, product claims, evidence references. It sends this to the Sigñal API, which matches against our scored index. No browsing history is stored.
A sidebar appears with the brand's full report — signal color, score, dimension breakdown, and per-claim receipts. Knowledge before the money moves.
The extension only activates on pages our classifier identifies as wellness product pages. It doesn't run on your bank, your email, or any other site.
The extracted page text is sent to the Sigñal API. Your name, email, location, and any personal data stay on your device.
We don't log which pages you visit. The API receives the text and domain of the current page — nothing else.
Scan data is never sold to brands, advertisers, or data brokers. We're consumer-first by design — brands don't fund this index.
The Chrome extension is in early beta. Leave your email and we'll send you access when we open the next cohort — and notify you when we ship to the Chrome Web Store.
chrome://extensions → Developer mode → Load unpacked
50+ brands reviewed across supplements, skincare, wearables, and neurotech. Explore the full index while the extension rolls out.