“Unscented” sounds like a promise. It isn’t one. Here’s what the words on the label actually mean, which is less than you’d think, and how to screen products more carefully.
Evidence key Strong Moderate Weak How we grade
The words mean whatever the company says
In the US, "fragrance free", "unscented" and "free and clear" have no legal definition, so each company picks its own meaning; some "unscented" products contain a masking fragrance added to hide the product's smell. Strong evidence. Rodriguez 2024
US law has never defined "fragrance-free"; the only definition is of fragrance itself ("used solely to impart an odor", 21 CFR 700.3(d)), so an ingredient that smells but is also claimed as a preservative or moisturizer can go into a "fragrance-free" product. FDA's own website said in 1999 that "fragrance-free" products, like "unscented" ones, may contain fragrance chemicals. Moderate evidence. Scheinman 1999
Regulators have said as much. Health Canada's current guidance (accessed 2026-09-27) states that a cosmetic labeled 'unscented' or 'fragrance-free' may contain a masking agent added to hide other odors, confirming a 2010 secondhand quote of the same policy word for word. Strong evidence. David Suzuki Foundation 2010
“Unscented” can still mean fragrance
The trick has a name: a masking fragrance. Products labeled unscented can still contain a fragrance added to mask other smells. Moderate evidence. Kumar 2020
This isn’t new. In 1999 a dermatologist listed ten US "fragrance-free" skin products that named fragrance chemicals in their own ingredient lists, including a "fragrance-free" cleansing bar containing rose, rosewood, cedarwood and almond oils; one manufacturer admitted the benzaldehyde in its fragrance-free product was there to mask an unpleasant smell. Moderate evidence. Scheinman 1999
“Fragrance-free” isn’t a guarantee either
In a 2016 survey of 174 best-selling US body moisturizers, 18 of the 40 labeled "fragrance free" (45%) still listed at least one ingredient that dermatologists' allergen database (ACDS CAMP) flags for fragrance-allergic patients. Moderate evidence. Xu 2017
Children’s products have their own problems, though these two studies measured different things: all contact allergens in “fragrance free” products, and a fragrance allergen on labels with no fragrance wording at all. Even products marketed 'fragrance free' for children commonly contain contact allergens: of 52 US pediatric products so labeled in 2013, 42 (80.8%) contained at least one NACDG-tray allergen and 29 (55.8%) contained two or more. Strong evidence. Hamann 2015 Benzyl alcohol, a fragrance allergen dubbed the "covert fragrance," was found in 32 of 533 US baby and children's personal care products (6%) with no "fragrance," "perfume," or "parfum" wording anywhere on the label. Moderate evidence. Bonchak 2018
In the natural aisle, “fragrance free” can still include essential oils. Many products sold as "fragrance free" in natural-product stores are free only of synthetic fragrance and still contain essential oils, which make up 80 of the 162 fragrance ingredients documented to cause skin allergy. Moderate evidence. Rodriguez 2024 More on that in “Natural” doesn’t mean allergen-free.
How to screen products more carefully
Stop trusting the front of the bottle. Several hundred different label names can signal fragrance (chemical names, over 50 essential oils by common or Latin name, and synonyms such as aroma, parfum, perfume and scent), so dermatologists say allergic patients are very unlikely to find fragrance-free products by reading labels alone. Moderate evidence. Rodriguez 2024
- Treat vague words like 'natural', 'green', 'eco-friendly' or 'for sensitive skin' as marketing, not evidence: read the ingredient list for parfum/aroma, essential oils and named fragrance allergens. Even 'fragrance-free' can allow essential oils and multifunctional allergens such as benzyl alcohol. Moderate evidence. Dahl 2010
- If you have fragrance allergy or eczema, don't rely on "fragrance free", "hypoallergenic" or "dermatologist recommended": in best-selling US moisturizers these claims often coexisted with listed skin allergens, so check the full ingredient list or a dermatologist-checked product list. Moderate evidence. Xu 2017
- If you are allergic to fragrance, check the full ingredient list of "fragrance-free" products and prescribed creams for benzyl alcohol, and ask for patch testing with your own products if reactions continue. Moderate evidence. Jacob & Barron 2007
- Paste the ingredient list into our label decoder. It flags fragrance, essential oils and allergens, and anything banned in EU cosmetics.
- Look the product up in EWG Skin Deep (personal care) or EWG’s Guide to Healthy Cleaning (household products) before you buy.
Until these words mean something in law, trust the ingredient list over the front of the bottle, and check it with the decoder or a product database, because even the list isn’t complete. Here’s why the law lets this happen.
Every claim above shows its evidence grade and names its source, with a link wherever one exists. See the claims we won’t make. Information, not medical advice.