Tools for your routine
Check labels, compare products, and spot conflicts — most tools work right in your browser with no account. Create a free profile when you want saved history and reaction insights.
Explore
Ingredient scanner
Photograph a label or paste an INCI list. See common irritants flagged in seconds.
Camera or paste · No account
Patch test translator
Turn clinical allergen names from your results into what to watch for on real product labels.
Photo or text · No account
Cross-reactor checker
If you react to one ingredient, see related names and hidden sources you might run into.
Quick lookup · No account
Product comparator
Put two products side by side: plain-English ingredient notes, irritants, and a clear comparison.
Photos or paste · No account
Ingredient conflict checker
Pick your actives and see what shouldn’t be layered together — plus a saner order to try.
30+ actives · Layering tips
Trigger detective
Connect reactions you’ve logged to ingredients that keep showing up across products.
Free with account · Your data
Why AllerNote
No signup for tools
Use the scanners and checkers without creating an account.
Built for sensitive skin
Flagging draws on dermatology references and known allergen lists — not generic “clean” scores.
INCI and beyond
Works with standard INCI names and many common synonyms you’ll see worldwide.
Optional profile
Add a free account when you want history, routines, and reaction tracking.
Save scans and track reactions
A free account keeps your ingredient checks in one place and unlocks Trigger Detective — so you can see which ingredients keep appearing when your skin flares.
Create free account