Sensitive Skin Field Guide

The front of the pack makes the claim.
The back tells you what is in it.

Plain-language guides to reading skincare labels when your skin is easily irritated. Look up a word you found, or learn to read the whole list.

Illustration of a hand holding a magnifying glass over a skincare tube, with leaves and a shield behind it

From: Fragrance-free vs unscented

How to check an ingredient list for fragrance

The label below is made up for illustration. It is not a real product.

UnscentedHypoallergenicfront of pack

Ingredients

Aqua, Glycerin, Caprylic/Capric Triglyceride, Cetearyl Alcohol, Glyceryl Stearate, Lavandula Angustifolia Oil 2, Tocopherol, Parfum 1, Phenoxyethanol, Linalool 3, Limonene 3

Contains masking fragrance 4

  1. General terms. “Fragrance”, “parfum” and “aroma” are the usual ways added scent appears.
  2. Essential oils and scented extracts. Lavender, rose, citrus peel or peppermint oils can add scent even when the front says nothing.
  3. Named fragrance allergens. On EU products: linalool, limonene, geraniol or citronellol, often near the end.
  4. Masking wording. A “masking fragrance” suggests the product is unscented rather than fragrance-free.
  5. Read the whole list. Ingredients at 1% or less may appear in any order, so fragrance often sits near the end.

Label words, in plain language

20 words · each from one of our guides

What each word usually means on a pack, and the guide that explains it with sources.

  • Fragrance

    Added scent. On a US label a whole fragrance blend can be listed as this one word.

    From: Fragrance-free vs unscented

  • Parfum

    How added fragrance usually appears on EU lists. Specific fragrance allergens must also be named individually.

    From: Fragrance-free vs unscented

  • Aroma

    Another general term for added scent, alongside “fragrance” and “parfum”.

    From: Fragrance-free vs unscented

  • Unscented

    Describes the smell, not the formula. FDA says some unscented products contain a little fragrance added to mask other odors.

    From: Fragrance-free vs unscented

  • Fragrance-free

    Usually means nothing was added for scent, but neither FDA guidance nor EU law fixes a definition. Base ingredients can still smell faintly.

    From: Fragrance-free vs unscented

  • No added fragrance

    Similar to fragrance-free, with the same limits.

    From: Fragrance-free vs unscented

  • Naturally scented

    The scent comes from plant oils or extracts. That does not make the product free of fragrance allergens.

    From: Fragrance-free vs unscented

  • Masking fragrance

    Masking agent

    Covers an off-odor without adding a noticeable scent, so the product is unscented rather than fragrance-free. A US label may list it as “fragrance”, or leave it off at insignificant levels.

    From: Fragrance-free vs unscented

  • Essential oils

    Lavandula Angustifolia Oil (lavender), rose, citrus peel, peppermint

    Plant oils that can add scent even when the front of the pack does not mention fragrance. FDA has no regulatory definition of the term.

    From: Fragrance-free vs unscented

  • Linalool · Limonene · Geraniol · Citronellol

    Named fragrance allergens. EU lists show them individually, often near the end. 56 more must be named on products placed on the EU market from August 2026.

    From: Fragrance-free vs unscented

  • Hypoallergenic

    No US legal definition: FDA says it means whatever a company wants it to mean. Non-binding EU guidance asks for a product designed to minimize allergenic potential, and still not risk-free.

    From: What “hypoallergenic” tells you

  • Dermatologist tested

    A dermatologist was involved in some testing. The claim usually does not say what was tested, on how many people or with what result.

    From: What “hypoallergenic” tells you

  • Allergy tested

    Some form of allergy-related testing took place. Look for the type of testing and who took part, if stated.

    From: What “hypoallergenic” tells you

  • Suitable for sensitive skin

    Describes who the product is aimed at. It is not a guarantee.

    From: What “hypoallergenic” tells you

  • Alkyl glucosides

    A family of surfactants known to cause allergic contact dermatitis. 56.7% of the 30 best-selling US shampoos sold as hypoallergenic for adults contained them.

    From: What “hypoallergenic” tells you

  • Propylene glycol

    A potential allergen. In a survey of 300 moisturizers, 18 of the 74 labeled hypoallergenic contained it.

    From: What “hypoallergenic” tells you

  • Methylchloroisothiazolinone / Methylisothiazolinone

    MCI/MI

    A preservative mix. In general-population patch test studies, 1.5% of people were allergic to it.

    From: What “hypoallergenic” tells you

  • Zinc oxide · Titanium dioxide

    Mineral (physical) sunscreen filters

    The AAD says dermatologists recommend mineral sunscreens for sensitive skin. Check the inactive ingredients as well as the filter type.

    From: What a minimal routine includes

  • Tocopherol

    Vitamin E

    Found among the potential allergens in the inactive ingredients of best-selling US sunscreens in a 2026 analysis.

    From: What a minimal routine includes

  • Retinol · Glycolic acid

    Retinoids, exfoliating acids

    The AAD notes these can cause temporary irritation, particularly on sensitive skin. A minimal routine leaves them out unless a clinician recommended them.

    From: What a minimal routine includes

What label surveys found

45%

of “fragrance-free” moisturizers in one US survey contained a fragrance-related or botanical ingredient.

73.6%

of products marketed as hypoallergenic in a UK survey contained at least one ingredient from a standard patch test series.

56

more fragrance allergens must be named on EU products placed on the market from August 2026.

Guides, by what you are looking at

A word on the label

What "Clinically Tested" Actually Means on Skincare

What 'clinically tested' means on skincare labels: why the claim is vaguer than it sounds, what clinical testing usually involves, and what to look for instead.

· 5 sources · checked Oct 16, 2026

What "Dermatologist Tested" Actually Means

What 'dermatologist tested' means on skincare: why the claim tells you less than you think, what the testing usually involves, and what to check instead.

· 5 sources · checked Oct 16, 2026

The EU Fragrance Allergen Labeling Rules Explained

The EU's 2023 fragrance allergen labeling rules: 56 new allergens added, what the thresholds mean, transition dates and how to read your labels during the changeover.

· 5 sources · checked Oct 16, 2026

Reading a Skincare Ingredient List: Order Matters

How skincare ingredient lists work: the ordering rule, the 1% line, where to find fragrance and preservatives, and how to compare two products quickly.

· 5 sources · checked Oct 16, 2026

Common Irritants in Skincare: A Practical List

A practical list of common irritants in skincare products: fragrance, preservatives, surfactants, alcohols, acids and more, with label-reading tips.

· 6 sources · checked Oct 16, 2026

Your routine

Nickel Allergy and Cosmetics: A Hidden Source

How nickel allergy affects cosmetic product choices: where nickel hides in beauty products and tools, how to test for it, and how to avoid exposure.

· 5 sources · checked Oct 16, 2026

Contact Dermatitis: How to Identify the Cause

How to identify the cause of contact dermatitis: the difference between irritant and allergic types, how patch testing works, and practical steps to narrow down the culprit.

· 5 sources · checked Oct 16, 2026

Product Choices for Eczema-Prone Skin

How to choose skincare products for eczema-prone skin: what ingredients help, what irritates, how to read labels, and when over-the-counter products are not enough.

· 5 sources · checked Oct 16, 2026

How Stress Affects Sensitive Skin

How psychological stress affects sensitive skin: cortisol and barrier function, stress-triggered flares, and practical ways to reduce the skin impact of stress.

· 4 sources · checked Oct 16, 2026

How to Patch Test a New Skincare Product at Home

How to patch test a new skincare product at home: where to apply, how long to wait, what counts as a reaction, and when a home test is not enough.

· 5 sources · checked Oct 16, 2026

The Skin Barrier Explained

What the skin barrier is, how it protects you, what damages it, signs of a compromised barrier, and how to repair and maintain it for sensitive skin.

· 5 sources · checked Oct 16, 2026

What a Minimal Skincare Routine Includes

A minimal skincare routine for sensitive skin: a gentle cleanser, a moisturizer and daytime sunscreen. How to choose each one and test changes safely.

· 9 sources · checked Oct 16, 2026

Cleanser pH and Sensitive Skin: Why It Matters

Why cleanser pH matters for sensitive skin: how the acid mantle works, what happens when pH is too high, and how to find a pH-appropriate cleanser.

· 5 sources · checked Oct 16, 2026

Chemical Sunscreen Filters and Sensitivity

Which chemical sunscreen filters are most likely to cause reactions on sensitive skin, how they work, what the allergy data shows, and how to check your sunscreen label.

· 5 sources · checked Oct 16, 2026

Laundry Detergent and Skin Irritation

How laundry detergent residue can irritate sensitive skin: which ingredients cause problems, how to reduce exposure, and what to look for in a detergent.

· 5 sources · checked Oct 16, 2026

How Seasonal Changes Affect Sensitive Skin

How seasonal changes affect sensitive skin: why winter dryness and summer humidity change your skin's needs, and how to adjust your routine simply.

· 5 sources · checked Oct 16, 2026

Why You Should Introduce One Product at a Time

Why introducing one new skincare product at a time helps identify what works and what causes reactions, how long to wait, and how to track your results.

· 5 sources · checked Oct 16, 2026

Does Diet Affect Sensitive Skin?

Whether diet affects sensitive skin: what the research shows about food, inflammation and skin conditions, and what dietary changes might actually help.

· 4 sources · checked Oct 16, 2026

A label claim says nothing about irritation

“Hypoallergenic” is about allergy. Irritation is more common than allergy, so a gradual trial on your own skin tells you more than the claim does.

When to see a clinician first

Persistent redness, stinging, itching or a rash deserves a dermatologist. Bring the ingredient lists. Seek urgent care for swelling of the face, lips or eyes, or difficulty breathing.