TL;DR: In the United States and the EU, “fragrance-free” has almost no enforced definition, and brands routinely use scented botanicals or fragrance-masking ingredients in products labeled this way. Understanding the actual rules, the loopholes, and the chemistry of “masking fragrance” is the only way to read a label correctly when your skin reacts to perfume.
A reader in Denver sent me an ingredient list in October. Her dermatologist had told her to use only fragrance-free products because of recurring perioral dermatitis. The moisturizer she had bought, prominently labeled “fragrance-free” on the front, contained limonene, linalool, geraniol, citral, lavender oil, and “fragrance (parfum)” listed last in the ingredients. She wanted to know how this was legal.
It is legal, in most jurisdictions, because “fragrance-free” is not a regulated term. The label is closer to marketing copy than to a chemistry statement. I have explained this dozens of times in correspondence, and it keeps coming up because the gap between what consumers think the label promises and what brands are allowed to do under that label is large enough to drive a truck through.
This piece is about exactly what the term means, what it doesn’t, and how to read a label when you have a real reason to avoid fragrance.
What the actual rules say
In the United States, the FDA does not define “fragrance-free” in any binding regulation. The agency has issued guidance on cosmetic labeling generally and has clarified that fragrance ingredients can be grouped under the single term “fragrance” or “parfum” on the ingredient list, but it has not promulgated a rule that says “fragrance-free” must mean any specific thing on the front of a product. The Federal Trade Commission has the authority to challenge false advertising claims, but in practice it does not police this term.
What this means in plain English is that an FDA-regulated cosmetic can be labeled “fragrance-free” on the front and still contain ingredients that produce a scent, as long as the brand can argue that the scent is “incidental” or that the ingredients are present for a non-fragrance purpose.
In the European Union, the regulatory situation is slightly better but still loose. EU Cosmetic Regulation 1223/2009 requires that twenty-six specific fragrance allergens be declared individually when present above 0.001% in leave-on products and 0.01% in rinse-off. These include limonene, linalool, geraniol, citral, citronellol, cinnamal, eugenol, and others on what is sometimes called the “Annex III” list. The Johansen 2015 review covers the dermatology rationale for this list (PMID: 26179009). A new amendment, due to be fully in force by 2026, expands this list to over eighty allergens.
What the EU does not do is define “fragrance-free.” A brand selling in Europe can label a product fragrance-free and still include any number of these allergens, provided they are declared in the ingredient list. The argument is that the ingredients are present for their non-fragrance function: an essential oil might be present for “antimicrobial activity,” a fragrance compound might be present as a “natural extract.”
In the UK post-Brexit, the rules are functionally similar to the EU. In Canada and Australia, the term is similarly unregulated. Japan’s PMDA has stricter ingredient transparency rules but does not define “fragrance-free” either.
The legal grey area brands live in
Three patterns repeat across products labeled fragrance-free.
The first is the “masking fragrance.” Some cosmetic ingredients smell bad on their own, particularly certain plant extracts, silicones with residual processing odors, and some preservatives. To make a product palatable, brands add fragrance compounds at low concentrations specifically to cover the underlying smell. These are sometimes called “masking agents,” and they are legally treated as fragrance ingredients. They are also legally compatible with a “fragrance-free” claim in many markets if the brand argues the addition is purely to neutralize odor, not to perfume. The Scheinman 1996 work on fragrance sensitization (PMID: 8773181) notes that masking agents can cause the same reactions as conventional fragrances, because the molecules are often the same.
The second is the “botanical extract.” Lavender oil, rose oil, ylang-ylang, neroli, citrus oils, peppermint oil, tea tree oil, eucalyptus, geranium. These contain high concentrations of the same allergens that appear in conventional fragrance blends. They produce scent. They cause reactions in fragrance-sensitive individuals. They are routinely present in products labeled fragrance-free, justified by their “skincare benefits” rather than their scent contribution. The de Groot 2016 paper on fragrance allergens covers this overlap directly (PMID: 26953129).
The third is the “fragrance compound listed by chemical name.” Limonene, linalool, citronellol, geraniol, hexyl cinnamal. These are fragrance allergens that can appear on an ingredient list without the word “fragrance” anywhere. A formulator can pick a handful of these, add them at low concentration for scent, and the product can still avoid the word “fragrance” in the ingredient list. Whether this product can be called fragrance-free is debated. Many brands do. Some regulators have begun to push back.
Why dermatologists keep saying it differently
If you have ever had a dermatologist tell you to use fragrance-free products, you have probably noticed that they often follow up with a list of specific ingredients to avoid. This is because dermatologists know the term is unreliable.
Schnuch 2007 documented the prevalence of fragrance contact allergy in patch-tested populations (PMID: 17577350). Uter 2020 updated the figures (PMID: 31705828). The headline numbers are that around 5 to 11 percent of patch-tested adults react to one or more fragrance markers, with regional variation. The most common single allergens have shifted over time as formulations have changed, but limonene, linalool, hydroxycitronellal, and Lyral (now restricted in the EU) have been consistent offenders.
For these patients, “fragrance-free” on a label is not protective. The dermatology approach is to look for two things on the ingredient list: the word “fragrance” or “parfum,” and any of the twenty-six (soon to be eighty-plus) named allergens. If the patient is sensitized to a specific allergen, that one matters more. Patch testing identifies it.
The phrase that some dermatology departments use, “fragrance-free and essential-oil-free,” is more useful because it closes the most common loophole. “Hypoallergenic,” for what it is worth, has essentially no regulated meaning anywhere.
How to read a fragrance-free label
A few practical reading rules I use.
If the product contains essential oils, it is not fragrance-free in any meaningful sense. Lavandula angustifolia oil, rosa damascena flower oil, Citrus aurantium dulcis peel oil, Mentha piperita oil, Melaleuca alternifolia oil. These are scent ingredients. They cause contact reactions in sensitized individuals.
If the product contains one or more of the named fragrance allergens (limonene, linalool, citronellol, geraniol, citral, eugenol, hexyl cinnamal, isoeugenol, coumarin, farnesol, lyral), the product is not fragrance-free in a sensitivity sense. Some of these can appear naturally in cold-pressed plant extracts, but their presence is what your skin will react to, regardless of why they are there.
If the ingredient list contains the word “fragrance” or “parfum” anywhere, the product is not fragrance-free, regardless of what the front of the box says. This sounds obvious, and yet it appears on products labeled fragrance-free fairly often.
“Unscented” is a different word and usually means a masking fragrance has been added to cover other odors. It does not mean the product contains no fragrance compounds. It often means the opposite.
The contrarian section
I have read enough patch-test literature to be persuaded that fragrance sensitivity is a real, common, and underdiagnosed driver of facial dermatitis. I have also seen products that contain a tiny amount of a botanical for genuine functional reasons and that are practically tolerated by almost everyone. The blanket rule “no fragrance ingredients ever” is overcautious for most people.
Where I land is that the people who need to actually avoid fragrance, by which I mean people with a diagnosed sensitivity, recurrent contact dermatitis, perioral dermatitis, or persistent unexplained flushing and itching, should ignore the front of the label entirely and read the ingredient list. The term “fragrance-free” is too unreliable to use as a screening tool.
For everyone else, the question is whether avoiding fragrance gives you a meaningful benefit. The Bickers 2003 review on fragrance safety (PMID: 12726752) found that most fragrance ingredients used at normal cosmetic concentrations are well tolerated in the general population. Most people will not notice the difference between a fragranced and unfragranced moisturizer. Some will. If you are one of the people who do, you already know.
The other thing I think is true is that fragrance regulation is moving in a more consumer-friendly direction. The EU’s expanded allergen list, effective by 2026, will require disclosure of more individual allergens. The trend is toward more transparency, not less. The labels we have now reflect rules that were written when product complexity was lower. Read them with that history in mind.
What I would tell my past self
If you have a documented sensitivity, the front of the label is decoration. Always read the ingredient list. Ignore the word “fragrance-free.” Look for the named fragrance allergens, look for essential oils, look for “fragrance” or “parfum,” look for “masking fragrance.”
If you are reacting to a product but cannot pin down why, fragrance is one of the top three suspects, alongside preservatives and certain emulsifiers. Switching to a product with no fragrance ingredients of any kind, including essential oils, is a reasonable first experiment.
If a product you are using is labeled fragrance-free and your skin still flares, do not assume you are imagining it. The labeling is unreliable, and you may be reacting to an ingredient that is in the product despite the front-of-pack claim.
Frequently asked
Are essential oils less allergenic than synthetic fragrance?
No. They often contain the same allergens, sometimes at higher concentrations, often in less predictable mixtures. The Johansen 2015 review covers this.
Is “fragrance-free” the same as “unscented”?
No. Fragrance-free generally implies no fragrance ingredients, with the loopholes described above. Unscented usually implies a masking fragrance has been added to neutralize odor, and is sometimes more allergenic.
Does the EU’s expanded allergen list apply to US products?
Only if the product is sold in the EU. US-only products are not required to disclose individual allergens.
Can a product be truly fragrance-free?
Yes. Some brands formulate genuinely fragrance-free products, with no perfume, no masking agents, and no fragrant botanicals. They tend to be made for sensitive skin or medical applications and are typically labeled accordingly. The fragrance detector tool helps screen ingredient lists.
What about “natural fragrance”?
This is a marketing term, not a regulated one. Natural fragrance is usually a mixture of essential oils and isolated plant compounds, and is allergenically similar to synthetic fragrance.
If you suspect a fragrance reaction is driving recurrent flares, the perioral dermatitis eliminator walks through the elimination protocol. For broader barrier issues that look like fragrance reactions, see the barrier damage test.
References
- de Groot AC, et al. Essential oils and contact dermatitis. Contact Dermatitis 2016;75(1):2-11. PMID: 26953129.
- Schnuch A, et al. Patch testing with fragrance markers. Contact Dermatitis 2007;57(1):1-10. PMID: 17577350.
- Uter W, et al. Contact allergy to fragrances in the European baseline series. J Eur Acad Dermatol Venereol 2020;34(6):1240-1250. PMID: 31705828.
- Scheinman PL. Allergic contact dermatitis to fragrance. Am J Contact Dermat 1996;7(2):65-76. PMID: 8773181.
- Johansen JD, et al. European Society of Contact Dermatitis guideline for diagnostic patch testing. Contact Dermatitis 2015;73(4):195-221. PMID: 26179009.
- Bickers DR, et al. The safety assessment of fragrance materials. Regul Toxicol Pharmacol 2003;37(2):218-273. PMID: 12726752.
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Sources
- de Groot AC, et al. Contact Dermatitis 2016;75(1):2-11. PMID: 26953129.
- Schnuch A, et al. Contact Dermatitis 2007;57(1):1-10. PMID: 17577350.
- Uter W, et al. J Eur Acad Dermatol Venereol 2020;34(6):1240-1250. PMID: 31705828.
- Scheinman PL. Am J Contact Dermat 1996;7(2):65-76. PMID: 8773181.
- Johansen JD, et al. Contact Dermatitis 2015;73(4):195-221. PMID: 26179009.
- Bickers DR, et al. Regul Toxicol Pharmacol 2003;37(2):218-273. PMID: 12726752.