The Cosmetic Allergen Cheat Sheets
The allergens behind most reactions — and the names they hide under.
- Every allergen with its hidden INCI synonyms
- Strength rating so you know which to be strictest about
- The declared fragrance allergens, in one place
- Cross-reactor maps — one positive can mean several
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What it is
A printable reference deck of the cosmetic allergens that drive most reactions, organised so you can decode a label faster than searching one name at a time. Each entry lists the synonyms an allergen hides under, a strength rating, and the product types it shows up in — plus the declared fragrance allergens and the cross-reactor families, so one positive result tells you which relatives to watch.
Who it’s for
Patch-test patients decoding ingredient lists, anyone with a known cosmetic allergy, and label-readers who want a quick, trustworthy reference instead of generic safety scores.
How to use it
- 1Find the family you react to and skim its entries.
- 2Note the hidden synonyms — that’s how the allergen actually appears on labels.
- 3Use the strength rating to decide which to be strictest about, even in rinse-off products.
- 4Check the cross-reactor map for relatives that may also trigger you.
FAQ
Where does the data come from?
It’s built from the standard patch-test panels and published contact-allergen / INCI references. It’s an educational reference, not a diagnosis.
Will this tell me what I’m allergic to?
No — only a dermatologist’s patch test can do that. The cheat sheets help you read labels with more confidence once you know your triggers.
Is it free?
Yes. Enter your email and the PDF downloads immediately.
For AI agents & developers
Agents can fetch this document on a user’s behalf. Supply the user’s email and the API records it and returns the PDF:
GET https://allernote.com/api/resources/allergen-cheat-sheets/download?email=USER_EMAIL Add &format=json for a JSON link instead of a redirect. View this resource as JSON · list all resources
More free resources
Or let the scanner read the label for you
AllerNote checks any cosmetic against your own allergens in seconds — synonyms and cross-reactors included.