Issue 01 An allergen reader for sensitive skin

An unhurried read of every label, against your profile.

MySkinIQ checks 233 active NACDG and ACDS allergens, 70 cross-reaction families, and 65 endocrine disruptors against the sensitivities you actually have. No scare scores. No black box.

233
Active allergens
NACDG · ACDS
70
Cross-reaction families
Mapped, not guessed
65
Endocrine disruptors
EU 1223/2009
The Ordinary
scanned 2 min ago
Hyaluronic Acid 2% + B5
64 WORTH-IT
Caution
Two flags to check.
Both relate to your fragrance-mix sensitivity.
Limonene
Cross-reactive with your Fragrance Mix I sensitivity.
NACDG · 5.4% prevalence
Linalool
Same family. Oxidizes to a known sensitizer over time.
NACDG · 4.2% prevalence
Chapter II · Features

Six things that set MySkinIQ apart.

Each one came from a real reaction we couldn't explain with a score.

01 · Signature

A profile that is yours.

Patch-test results, known sensitivities, the things that make your skin flare. Add them once. Every scan is read against your list — not a generic risk score.

Fragrance Mix I MI / MCI Limonene Linalool Cobalt Nickel Balsam of Peru Quaternium-15
02 · Cross-reactivity

70 families, mapped.

A Fragrance Mix I reaction means Linalool, Limonene and Citronellol matter too. We trace the family tree so you don't miss a relative.

03 · Disruptors

65 compounds, screened.

Parabens, phthalates, restricted UV filters — the EU 1223/2009 list, run quietly in the background of every scan.

65 compounds, every scan
04 · Verdict

Clear. Caution. Not recommended.

Three states, in plain English. Each one earns its place — with the allergen named, the family explained, and the source cited.

Clear Caution Not recommended
05 · Transparency

No black-box scores.

You can read why we said what we said. Every flag carries a citation — NACDG prevalence, ACDS panel, or EU regulation.

NACDG 2021–2022
14.3% prevalence among contact-dermatitis patients.
06 · Method

Photo, barcode, or any URL.

Snap the back of the bottle, scan a UPC, or paste a Sephora link. Ingredients are extracted and checked in seconds.

Photo Barcode URL
Chapter III · The difference

Read alongside the other allergen apps.

Same product. Different reading.

Capability
MySkinIQ
Atelier reading
Generic scanners
Industry default
Allergen database
233
Active NACDG / ACDS records
50–80
Crowdsourced
Cross-reactivity
Yes
70 allergen families
No
Single-ingredient match only
Personalization
Yes
Your specific profile
No
Generic risk score
Endocrine screen
64
EU 1223/2009
Limited
If at all
Why we said it
Cited
NACDG prevalence shown
Hidden
Black-box score
Input methods
Three
Photo, barcode, any URL
One
Manual entry
Chapter IV · The reading

From bottle to verdict in three steps.

Each step is transparent. None requires a score to trust.

01 · Capture

Photo, barcode, or any URL.

Snap the ingredient list, scan the UPC, or paste a link from Sephora, Ulta, Amazon — any retailer.

Photo
Barcode
URL
02 · Reading

Each ingredient, against your list.

We identify INCI synonyms, map cross-reactive families, and flag endocrine disruptors — all against your profile.

Limonene — cross-reactive with FM I
Linalool — same family, oxidizes
Sodium Hyaluronate
Niacinamide
03 · Verdict

Clear, Caution, or Not recommended.

Three states in plain English. Each verdict carries the allergen name, family, and its published prevalence.

Caution
NACDG · 5.4% prevalence · 2021–2022
Chapter V · Evidence

Cited from the same panels dermatologists use.

Every flag in the app traces back to one of four sources — named, dated, and linked.

NACDG
North American Contact Dermatitis Group
Biennial patch test surveillance across North American dermatology clinics. The prevalence percentages in every flag come from here.
Updated biennially · patch test surveillance
ACDS
American Contact Dermatitis Society
Core 80 and Extended panels define which allergens belong in a thorough screening. Our active allergen database starts here.
Core 80 + Extended panels
EBS
European Baseline Series
The standard patch test panel across EU dermatology clinics, maintained by the European Society of Contact Dermatitis.
ESCD maintained · EU standard
EU Reg
EU Cosmetics Regulation 1223/2009
The legal basis for our endocrine disruptor screen. Banned and restricted ingredients, including UV filters still legal in US products.
65 compounds screened · Annex II & III

Common questions.

Is this medical advice?

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No. MySkinIQ is an educational tool to help you make informed decisions. It is not a substitute for patch testing or a dermatologist. If you have severe or persistent reactions, see a doctor.

How accurate is the allergen database?

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Our 233 active allergens are sourced from NACDG, ACDS, and the European Baseline Series — the same clinical panels dermatologists use for patch testing. We update the database as new surveillance data is published.

What if I don't know my allergens yet?

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You can still scan products to check against common allergens and endocrine disruptors. We recommend getting patch tested by a dermatologist, then adding your results to your MySkinIQ profile for personalized verdicts.

What do the three verdicts mean?

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Clear — no allergens or disruptors detected that match your profile.

Caution — cross-reactive compounds or moderate-risk ingredients detected. Worth checking the full flag list before use.

Not recommended — direct allergen matches or EU-restricted ingredients. Always verify on the physical label.

Do you sell my data?

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Never. Your allergen profile stays on your device and in your private Firebase account. We do not share or sell data to advertisers. You can export or delete your data at any time under GDPR Article 15 and 17.

Can I use this for food allergies?

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No. MySkinIQ is designed for topical skincare ingredient analysis only. Food allergy mechanisms are different and require different tools and clinical oversight.

Start scanning.

Free on the App Store. No account required to start. Your data stays on your device.

Download on the App Store
233 active contact allergens 70 cross-reaction families 65 endocrine disruptors Free · iOS