You’re in the aisle holding a bottle that says “clean,” “green,” “natural,” or “non-toxic,” and it feels like a good choice. Turn it over. Here’s what researchers found behind those words, what some certifications actually check, and what dermatologists suggest instead.
Evidence key Strong Moderate Weak How we grade
A green label didn’t mean cleaner air
Start with the words on the front.
Products labeled 'green,' 'natural' or 'non-toxic' released hazardous chemicals too, with no significant difference from ordinary ones in a test of 25 best-sellers. Moderate evidence. Steinemann 2011
An older advocacy-group test of air fresheners found a related labeling problem.
In a 2007 NRDC test of 14 US air fresheners, 12 (86%), including some labeled 'all-natural' or 'unscented', emitted phthalates at up to 7,307 ppm, and none listed a phthalate on the label. Weak evidence. NRDC 2007 (via Steinemann 2017)
In one UK survey, most people didn’t know.
Three in four UK adults (75.0%) did not know that products called natural, green, or organic can also release hazardous air pollutants, and more than half (53.5%) said they would stop using a product if they knew. Moderate evidence. Steinemann 2018
Natural on the front, fragrance on the inside
Sometimes the front says one thing and the ingredient list says another.
In 14 of 17 'alternative' (mostly green-marketed) products that contained fragrance chemicals, the label never mentioned fragrance. Moderate evidence. Dodson 2012
329 of 5,588 fragranced cosmetic products (5.9%) named one or more of the 26 EU fragrance allergens on the ingredient list without the words 'parfum', 'fragrance' or 'aroma' also appearing on the label; 45 of these 329 (13.7%) were marketed with 'organic/eco', 'sensitive', 'pure' or 'natural' in the product name. Moderate evidence. Bennike 2017/2018
A slogan can promise no synthetic fragrance while the ingredient list names a natural fragrance allergen.
A series of six men's grooming products from one brand were marketed with the text 'Our products never contain artificial colors, synthetic fragrances' while labeled to contain Evernia furfuracea (tree moss) extract, a natural-source fragrance allergen. Moderate evidence. Bennike 2017/2018
Fragrance materials not known to occur in any natural essential oil were found in products marketed as natural: a 'natural' body lotion contained 0.082% alpha-amylcinnamic aldehyde, a concentration that would require the essential oil itself to be about 16% pure synthetic aldehyde if it came from any known essential oil at typical use levels — evidence the 'natural' formulation included added synthetic fragrance material. Moderate evidence. Rastogi 1996
Even a perfumer says as much.
Perfumers themselves say every perfume blends synthetic and natural materials: "As all perfumers, I create perfume formulas with both synthetic and natural perfumery raw materials" (a Charabot perfumer). A "natural" scent is rarely all natural. Moderate evidence. Ellena 2008 Industry-funded
“Natural” is still chemistry
Look at what turned up in “natural” products.
Essential oils oxidize in air into the same allergens as synthetic fragrance, and 'natural' cosmetics routinely carry fragrance allergens: 91% of 'natural' perfumes on the Danish market contained at least one target fragrance sensitizer (chemical analysis, 1996) — but only 35% of the other 'natural' cosmetics (shampoos, creams, lotions) in the same study did, at far lower concentrations — and 82 of 100 European natural-brand products checked in 2013-15 listed at least one allergen on the label. Moderate evidence. Pastor-Nieto 2021 (Rastogi 1996; Klaschka 2016)
Ethanol, linalool, and D-limonene, common fragrance and solvent terpenes found in both synthetic and "natural" scented products, were the single most-listed chemicals overall (about 27%, 16%, and 12% of products respectively) in a database of over 7,000 Korean household chemical products, ahead of synthetic fragrance aldehydes like hexyl cinnamaldehyde (about 8%). Moderate evidence. Lee & Ji 2022
Essential oils are complex mixtures of hundreds of components whose composition varies by producer, plant origin, climate, and extraction method, so a product labeled as containing 'lavender oil' or 'tea tree oil' does not guarantee a fixed chemical composition or a fixed level of biological activity. Moderate evidence. Ramsey 2020 (YJBM)
One regulatory example, based partly on animal evidence:
Citronella oil, marketed as a natural insect repellent, has been banned in the European Union and Canada since 2006, partly because it contains methyl eugenol, which the US National Toxicology Program considers 'reasonably anticipated to be a human carcinogen' based on animal studies. Weak evidence. Ramsey 2020 (YJBM)
The belief that natural means healthier sticks anyway, even among people who read labels.
More than half of Germans (55.6%) wrongly believe products with natural fragrance ingredients are healthier than products with synthetic ones, and the false belief is highest (67-69%) among people who read ingredient labels or prefer fragrance-free products. Moderate evidence. Klaschka 2020a
What some seals actually check
A seal looks official. Read what stands behind it.
EPA's Safer Choice fragrance-free certification is a documentary ingredient-list review, not a finished-product lab test: EPA checks that a product already meets the full Safer Choice Standard, then checks its ingredient list against the industry's own IFRA Transparency List of fragrance materials. Moderate evidence. US EPA Safer Choice
On the page describing its Product Endorsement Scheme, Allergy UK publishes no fragrance-specific criteria: the word "fragrance" does not appear anywhere on the page, and the only stated assurance is that a product has been "scientifically tested by Allergy UK to confirm its claims," with no ingredient list, protocol, or threshold given. Moderate evidence. Allergy UK 2026
Even the companies selling consumer products say suppliers don’t always tell them what’s inside.
Even the companies selling products often don't know everything in them: all 20 'leader' consumer-product companies interviewed said ingredient or hazard information could be hard to get from suppliers, and 7 named suppliers' trade-secret claims as a major obstacle. Moderate evidence. Scruggs 2011
What the EU says about “free from” claims
Europe has written guidance on these claims. Read what it says.
The European Commission's own guidance on cosmetic 'free from' claims (agreed with industry in 2017) says a 'free from perfume' claim should not be used if the product contains any ingredient that exerts a perfuming function, regardless of that ingredient's other functions — wording that would exclude a masking fragrance, not permit one. Moderate evidence. EC Technical Document on Cosmetic Claims 2017 Industry-funded
Under EU/UK law, a 'free from [substance]' cosmetic claim about a substance already banned for all EU cosmetics would appear to fall under the rule barring claims that dress up mere legal compliance as a special product benefit. Weak evidence. Commission Regulation (EU) No 655/2013
What dermatologists suggest instead
People who suspect a fragrance allergy should choose products specifically labeled "fragrance free" rather than "hypoallergenic" or "unscented," since the latter two terms may still permit some fragrance in the product. Moderate evidence. Musicante 2024 Industry-funded
If you are allergic to fragrance, dermatologists advise avoiding all fragrance rather than only the chemicals you tested positive to, and choosing products from a checked database such as the ACDS CAMP list or SkinSAFE instead of trusting 'fragrance-free' claims. Moderate evidence. Rodriguez 2024
One European report recommends apps and ecolabels, though it didn’t test whether they cut exposure.
This report recommends free consumer apps (Yuka, Tox Fox, Kemiluppen) and trusted ecolabels (Nordic Swan, EU Ecolabel) or fragrance-free certification labels (Asthma Allergy Denmark, Allergy Certified) as ways to identify or avoid suspected EDCs and allergens in personal care products. Weak evidence. Tegengif 2022
What you can do
- Treat “clean,” “green,” “natural,” and “non-toxic” as marketing, not as a promise about what the product puts into your air or onto your skin.
- Turn the bottle over. Look for fragrance, parfum, aroma, essential oils, and named fragrance ingredients such as limonene and linalool, whatever the front says.
- Paste an ingredient list into our label decoder, or look up a product on EWG Skin Deep.
- If you have or suspect a fragrance allergy, ask your dermatologist about a checked product list rather than trusting the label alone.
- Read more on why natural isn’t allergen-free and why unscented isn’t fragrance-free, and see our fragrance-free shopping guide.
- Ask the places you spend time to go fragrance-free. Print a sign or write a letter.
Every claim above shows its evidence grade and names its source. See all the facts and the claims we won’t make. Information, not medical advice.
