Does Wearing Perfume Cause Cancer? What Science Really Says

By Kershen Teo, founder and natural perfumer of Prosody London

At a Glance — Does Perfume Cause Cancer?

Perfume is one of the most chemically complex products many people apply to their skin every day. Modern fragrances can contain hundreds of individual aromatic compounds, and while most have been assessed for use within regulatory concentration limits, some ingredients have attracted greater scientific attention than others. Among the most studied are the synthetic musks galaxolide (HHCB) and tonalide (AHTN), investigated for their persistence, bioaccumulation and potential endocrine activity. At the same time, several naturally occurring fragrance compounds—including constituents of frankincense, myrrh and other botanical materials—have been investigated in preclinical research for entirely different reasons, including potential anticancer activity. This article examines what the peer-reviewed evidence actually shows for both groups of ingredients, rather than treating “perfume” as a single substance with a single health profile.

Cancer is only one of several health questions fragrance researchers investigate. Much of the published literature instead focuses on endocrine disruption, reproductive biology, environmental persistence and bioaccumulation. Because these topics are frequently conflated in public discussion, this article considers each separately before asking what, if anything, they imply for cancer risk.

Prosody London fragrances are formulated exclusively from botanical ingredients. That formulation philosophy naturally shapes my perspective as a perfumer, but this article is grounded in the published scientific literature. Where I discuss the materials I use—including ambrette seed, agarwood, labdanum, frankincense and myrrh—I distinguish between their established role in perfumery and the separate biomedical research investigating isolated compounds under laboratory conditions.

How Perfumes Are Formulated

Most mainstream fragrances contain a mixture of synthetic aromatic molecules designed to produce layered scent profiles with consistent performance and longevity. These typically include synthetic musks such as galaxolide and tonalide; phthalates used as fixatives and solvents; volatile organic compounds; UV stabilisers; and in some cases, natural essential oil components.

Some of these ingredients have been studied extensively for their biological behaviour — which is what leads people to ask whether long-term exposure contributes to health outcomes. The honest answer requires separating the cancer question from the endocrine disruption question, because these are frequently conflated and the evidence for each is different.

Synthetic Musks: Bioaccumulation Is the Core Concern

Synthetic musks — principally galaxolide (HHCB) and tonalide (AHTN) — are among the most widely used fragrance fixatives in mainstream perfumery. They provide the smooth, skin-close warmth and projection that defines many commercial fragrances. They are also among the most studied synthetic fragrance ingredients for environmental and biological persistence.

Research published in peer-reviewed journals has shown that galaxolide and tonalide are lipophilic, environmentally persistent compounds that have been detected in human lipid-rich tissues and breast milk following repeated exposure. Multiple PubMed studies screening breast milk samples across China found HHCB, AHTN, and OTNE consistently present across provinces, with concentrations directly correlated with the use of personal care products including fragranced body lotions, shampoos, and perfumes.

Detection in human tissues does not prove harm, but it does demonstrate that synthetic musks such as galaxolide and tonalide can be absorbed following everyday exposure and have been detected in blood, adipose tissue and breast milk. Multiple biomonitoring studies have consistently detected these compounds in human tissues, showing that these compounds can persist in human tissues following repeated exposure. PubMed study on synthetic musks in human breast milk PubMed study on synthetic musks in maternal blood, cord blood and breast milk.

A widely cited study published in Environmental Health Perspectives found that several synthetic musks, including galaxolide, produced prolonged inhibition of the MDR/MXR cellular defence system in marine mussels, with transporter activity remaining impaired for up to 48 hours after exposure. Because this study was conducted in marine mussels rather than humans, the authors suggested the mechanism warranted further investigation before any implications for human health could be drawn.

I use a range of botanical materials to create muskiness naturally, including ambrette seed absolute, the naturally occurring macrocyclic musk ambrettolide found in ambrette seed, angelica seed, labdanum and agarwood. Together they provide a genuine skin-scent quality without relying on synthetic polycyclic musks such as galaxolide or tonalide, which have been widely studied for their persistence in the environment and their detection in human tissues. My choice is fundamentally one of ingredient philosophy: achieving the same intimate effect through botanical materials rather than synthetic musk chemistry.

Phthalates: Endocrine Disruption and Reproductive Effects

Phthalates are used in mainstream fragrance as fixatives and solvents — they help fragrance molecules bind to skin and extend longevity. Most are not individually disclosed on labels, appearing instead within the collective “parfum” declaration. Our phthalate-free perfume guide explains exactly how this works and what to look for.

The peer-reviewed evidence on phthalates is more developed than for musks. Multiple studies have demonstrated that phthalates act as endocrine-disrupting chemicals at biologically relevant doses — interfering with oestrogen receptors, reducing testosterone, and affecting reproductive development. Our endocrine disruptors in perfume guide covers the full evidence base including key citations from Environmental Health Perspectives and the Lancet.

On the cancer question specifically: current evidence does not establish a direct causal link between phthalate exposure from fragrance and cancer in humans. What the evidence does show is hormone system interference — and because many hormone-sensitive cancers are linked to oestrogen exposure over time, some researchers argue that these findings support a precautionary approach, although current human evidence does not establish cancer causation from fragrance exposure.

Iso E Super: Sensitisation, Bioaccumulation and Environmental Persistence

Iso E Super (OTNE) deserves specific mention because it is ubiquitous in modern niche perfumery — used as an amplifier that gives fragrances a warm, radiant quality. It has been described as the MSG of perfumery and appears in an enormous proportion of contemporary niche and designer fragrance.

Under EU CLP classification, Iso E Super carries H315 (skin irritant) and H317 (skin sensitiser) designations. The European Scientific Committee on Consumer Safety has recommended it for inclusion in updated fragrance allergen labelling requirements. PubMed data confirms OTNE is detected in human breast milk, and research published via ResearchGate identifies it as a compound with limited biodegradability that persists in waterways and sewage sludge — raising cumulative exposure concerns that individual risk assessments do not fully address. For the full evidence on safety, bioaccumulation and environmental persistence, see our Iso E Super guide.

There is no current evidence that Iso E Super causes cancer at typical consumer concentrations. But it is a recognised skin sensitiser and has been detected in human tissues and environmental samples, which is why it continues to receive scientific and regulatory attention. I do not use it in any Prosody London formulation — not because of the cancer question but because Prosody London is built entirely from botanical ingredients, and synthetic aroma chemicals of any kind have never been part of what we make.

Cancer vs. Endocrine Disruption: An Important Distinction

These two questions are frequently conflated in fragrance health writing, and conflating them serves neither accurate science nor informed consumer choice.

Endocrine disruption refers to interference with hormone systems that regulate growth, metabolism, and reproductive function. Some fragrance ingredients — certain phthalates and synthetic musks — have shown weak oestrogenic or anti-androgenic activity in laboratory studies. A review in Nature Reviews Endocrinology examined the evidence on endocrine-disrupting chemicals and reproductive health and confirmed the biological plausibility of these mechanisms.

Endocrine disruption is not equivalent to cancer causation. Effects observed in high-dose animal studies do not translate directly to typical consumer exposure, and human epidemiology has not established cancer risk from fragrance EDC exposure at normal use levels. They are important and separate questions — and answering “does perfume cause cancer” honestly requires maintaining that distinction.

Male Fertility and Hormonal Health

The evidence linking certain fragrance-related chemicals — particularly some phthalates — to reproductive and hormonal effects is more developed than the evidence linking fragrance use itself to cancer risk. These findings are important, although their relevance to typical consumer fragrance exposure remains an area of ongoing research.

Phthalates have been associated with changes in testosterone levels, semen parameters, and reproductive development in human observational studies and experimental models. Some synthetic musks have shown weak endocrine activity in laboratory studies, although the significance of these findings for human health at typical exposure levels remains uncertain.

Benzene Derivatives and UV Filters

Perfumes sometimes contain benzene-derived chemicals and UV filters such as benzophenone-3 (oxybenzone). Benzene itself is a well-established human carcinogen at high occupational doses — but the benzene derivatives used in cosmetic fragrance formulations are structurally different and regulated under EU and UK cosmetics law.

Some UV filters including oxybenzone have been scrutinised for endocrine activity and skin sensitivity. Evidence directly linking these to cancer through everyday fragrance exposure is insufficient at current consumer concentrations. Asking whether perfume causes cancer on the basis of benzene derivatives in fragrance oversimplifies complex chemical behaviour and the regulatory controls that govern consumer product safety.

What the Regulatory Frameworks Say

Regulatory bodies including the EU Cosmetics Regulation and the Scientific Committee on Consumer Safety continuously review fragrance ingredients for safety. Many compounds with stronger evidence of harm have been restricted or banned — certain phthalates and nitro musks among them — not because they were proven human carcinogens at consumer doses, but because precautionary regulation prioritises safety before harm is fully established.

This is the appropriate regulatory posture. It also means that mainstream fragrance use is currently considered by regulatory authorities to fall within accepted safety margins for most people most of the time.

Allergies, Sensitivities, and Non-Cancer Effects

Fragrance users commonly experience skin irritation, respiratory sensitivity, headaches, and olfactory fatigue from synthetic fragrance ingredients. These are not cancer — but they are worth taking seriously in their own right. If you experience headaches or skin reactions from a fragrance, that is useful information about your personal sensitivity regardless of any broader cancer question. Our guide to perfume-induced headaches covers the most common triggers and how to identify them.

Why the Question Persists

The question “does perfume cause cancer” persists because it reflects legitimate broader concerns — about chemical exposures, hormone health, long-term low-level toxicity, and environmental contamination. Those concerns are reasonable. Many fragrance ingredients do reach the environment and accumulate in the body at trace levels. But exposure is not the same as harm, and association is not proof of causation.

At this time, no conclusive human data support the claim that normal perfume use causes cancer. What the science does show is that certain synthetic fragrance ingredients persist in the body, interact with hormone systems, and raise precautionary questions that justify both ongoing research and the choice to avoid them.

At Prosody London: A Structural Solution

I have never used synthetic musks, phthalates, Iso E Super, or any petrochemical derivatives in any Prosody London formulation. This is not a marketing position — it is what it means to work exclusively with botanical ingredients.

Every fragrance is composed from essential oils, plant absolutes, CO2 extracts, and natural resins in certified organic grain alcohol. The soft musk character comes from a combination of botanical materials, including ambrette seed absolute, naturally occurring ambrettolide, angelica seed, labdanum and agarwood. The longevity comes from resinous botanical fixatives — agarwood, benzoin, labdanum — that anchor the formula through molecular weight and genuine skin affinity rather than synthetic persistence.

If the questions in this article brought you here, natural perfumery is a genuine alternative — not a compromise. For the full picture of how we formulate, see our organic perfume guide and our natural perfume vs synthetic guide.

Botanical Compounds With Their Own Body of Cancer Research

These studies investigate isolated natural compounds under laboratory conditions — typically in cultured cells or animal models, using concentrations that differ substantially from those encountered through wearing perfume. They should not be interpreted as evidence that perfumes containing these ingredients prevent or treat cancer.

The synthetic ingredients discussed above have been studied primarily for bioaccumulation, endocrine activity, and environmental persistence — not for any protective effect. Several of the aromatic compounds found in Prosody London’s own formulations sit on the opposite side of that research entirely: they’ve been independently studied, in preclinical laboratory and cell-line settings.

Coumarin

Coumarin, tonka bean’s principal aromatic compound, is a material I use in some formulations. A comprehensive 2025 review in Food Science & Nutrition confirms coumarin’s ability to induce apoptosis, inhibit cancer cell proliferation, and disrupt cancer-relevant signalling pathways including NF-κB, across a range of preclinical models of human malignancies. Coumarin is also a regulated skin sensitiser under EU fragrance allergen law; any formulation containing it is composed to IFRA’s tolerable concentration limits.

Eugenol

Eugenol is one of the most widely present aromatic compounds in botanical perfumery. It’s the dominant constituent of cinnamon leaf oil — typically 65–80% eugenol — and appears in smaller, still-active amounts in pimento (allspice) oil and nutmeg. Across independent preclinical studies, eugenol has demonstrated anticancer activity in breast cancer cell lines via the HER2/PI3K-AKT pathway, in pancreatic cancer cells by sensitising them to TRAIL-induced apoptosis, and in tongue squamous carcinoma cells via Bcl-2 family modulation, with a 2025 review consolidating the mechanisms across cancer types. Like coumarin, eugenol is a regulated skin sensitiser; any formulation containing it is composed to IFRA’s skin-tolerable limits.

Frankincense

Frankincense carries one of the more extensively studied aromatic resins among natural aromatics in preclinical models. Its principal active compound, boswellic acid — and specifically AKBA (acetyl-11-keto-beta-boswellic acid) — has been shown across multiple independent preclinical studies to induce apoptosis in prostate, colon, melanoma, hepatocellular, and leukemia cancer cell lines. Frankincense’s medicinal use has deep historical roots well beyond modern research: it appears throughout Islamic prophetic medicine (Tibb-e-Nabawi), traditional Chinese medicine, and Ayurveda, and has been used in religious and healing contexts for thousands of years across multiple, independent civilisations, prescribed alongside myrrh as a combined “drug pair” in Chinese medicine for over a thousand years.

Myrrh

Myrrh has been studied alongside frankincense in preclinical research for its effect on cancer cell lines — a 2013 study in Oncology Letters found breast (MCF-7) and skin (HS-1) cancer cell lines showed increased sensitivity to myrrh and frankincense essential oils, with myrrh reporting greater activity under that study’s experimental conditions. Myrrh shares frankincense’s deep cross-cultural medicinal history — referenced in Islamic prophetic medicine for wound care, oral health, and infection treatment, in the Hebrew Bible and New Testament, and in traditional Chinese medicine.

Linalool

Linalool is one of the most extensively researched aromatic compounds in this entire list — present in nearly every Prosody London formula, since it’s a natural constituent of bergamot and citrus oils broadly. Across preclinical studies, linalool has demonstrated anticancer activity in leukemia and cervical cancer cell lines, with potency directly compared against 5-FU, an actual chemotherapy agent; in breast cancer cell lines including a full mouse xenograft model showing inhibited tumor growth in vivo; in colon cancer models where high-dose treatment reduced tumor weight by 55% compared to controls; and in prostate cancer cell lines via apoptosis and cell-cycle arrest. A 2026 review in Frontiers in Pharmacology — the most recent and most critical assessment of this evidence — is explicit that linalool should not yet be presented as an established anticancer agent, only that the preclinical evidence supporting further research is genuinely substantial. Linalool is also a regulated skin sensitiser under EU fragrance allergen law; every Prosody London formulation containing it — which is to say, nearly all of them — is composed to IFRA’s tolerable concentration limits.

Vetiver

Vetiver — a material with centuries of use in traditional medicine across South and Southeast Asia — is also a valued perfumery ingredient, prized for its exceptional longevity. Modern preclinical laboratory research has identified anti-inflammatory, antioxidant and anticancer activity in vetiver essential oil and several of its sesquiterpene constituents, including studies demonstrating cytotoxic effects against breast cancer cell lines. Bioactivities of Vetiveria zizanioides essential oil (review) Experimental study on vetiver oil and breast cancer cell lines The mechanisms investigated in these biomedical studies are entirely separate from vetiver’s role in perfumery, where its exceptional longevity comes from its sesquiterpene-rich chemistry and very low volatility rather than any biological activity.

Limonene

Limonene, present throughout citrus-forward compositions across the range, has shown selective cytotoxic activity under preclinical laboratory conditions — a study on citrus essential oil and its major compound limonene found meaningful cytotoxic effect against liver cancer (HepG2) cells, while showing low toxicity toward normal human skin fibroblasts in the same testing. The evidence base here is less extensive than for linalool or vetiver, although it remains considerably smaller than the evidence supporting those two materials.

Why I Work With These Materials

I don’t formulate with frankincense or myrrh for any therapeutic effect — I use them because they’re genuinely exceptional perfumery materials: rich, resinous, and among the most effective natural fixatives available, anchoring a composition through molecular weight and skin affinity rather than synthetic persistence. There’s a personal reason too: these are materials with thousands of years of cultural and spiritual heritage behind them, used across civilisations that never spoke to each other yet arrived at the same conclusion about their value — and materials that ongoing scientific research keeps returning to, for reasons well beyond scent alone. I genuinely love working with them. That’s not a claim about what wearing a Prosody London fragrance does for you. It’s an honest account of why I make what I make.

FAQ on does Wearing perfume cause cancer

A Note on This Article

This article discusses peer-reviewed research on fragrance ingredients and is intended for general informational purposes only. It does not constitute medical advice and should not be used as a substitute for consultation with a doctor, oncologist, or other qualified healthcare professional. If you have personal or family health concerns related to cancer risk, hormone health, or chemical exposure, please speak with a medical professional who can assess your individual circumstances.