An umbrella term for complex aromatic mixtures found in over 40,000 products in our database. Most consumers use fragranced cosmetics without adverse reactions. However, fragrance is also the most frequently cited cause of cosmetic contact allergy — the SCCS (2012) estimated that roughly 1–3% of the European general population may be sensitised, with significantly higher rates among eczema patients. Understanding who is at higher risk is key to making informed choices.
This fragrance component adds pleasant scents to skincare and cosmetic products to enhance the user experience. It consists of various aromatic compounds blended together to create specific fragrances. The majority of consumers use fragranced products without adverse effects. However, for a subset of individuals — particularly those with existing eczema, sensitive skin, or prior fragrance sensitisation — it can cause skin irritation or allergic contact dermatitis. In clinical dermatology settings, fragrance is one of the most frequently identified causes of cosmetic contact allergy.
"Parfum" (or "Fragrance" in US labelling) is not a single chemical substance but an umbrella term that can encompass dozens to hundreds of individual aromatic compounds mixed together to produce a specific scent profile. These compounds may be derived from natural sources (essential oils from flowers, fruits, wood, resins) or synthesised in a laboratory (aroma chemicals). The exact composition is typically proprietary and considered a trade secret, which is why the individual components are not itemised on product labels under the single term "Parfum." However, EU regulation requires individual disclosure of specific allergens: the original 26 substances identified in 2005 have been expanded to over 80 under Regulation (EU) 2023/1545, with compliance required from July 31, 2026 for new products and July 31, 2028 for existing products.
The SCCS Opinion SCCS/1459/11 (June 2012) provided the most comprehensive scientific review of fragrance allergens to date. Based on available studies, the SCCS estimated that around 16% of eczema patients in Europe were sensitised to fragrance ingredients, with roughly 1–3% of the general population showing fragrance contact allergy — though these are estimates derived from specific study populations and may vary across regions and time periods. The SCCS identified 82 individual chemicals and a number of natural extracts as established contact allergens in humans (Table 13-1), significantly expanding the original list of 26 identified by the SCCNFP in 1999. This scientific basis ultimately led to the EU expanding its mandatory allergen labelling list through Regulation (EU) 2023/1545. Some of these substances — particularly Limonene, Linalool, and Linalyl Acetate — become more potent sensitisers through air oxidation (prehaptens), while others like Cinnamyl Alcohol, Eugenol, and Isoeugenol are activated through metabolic transformation in the skin (prohaptens).
The primary purpose of fragrance in cosmetics is to create a pleasant sensory experience. Scent can improve product appeal, encourage consistent use, and contribute to the overall perception of product quality and efficacy.
Many active cosmetic ingredients have unpleasant natural odours. Fragrance blends mask these base odours, making the finished product more pleasant to apply. This "masking" function is registered in EU CosIng.
Signature scents create strong product recognition and emotional associations. A distinctive fragrance can differentiate a product in a crowded market and influence purchasing decisions through scent memory.
Unlike active ingredients, fragrance provides no therapeutic or conditioning benefit to the skin itself. It is a purely cosmetic-aesthetic addition. Some individual fragrance components (e.g., certain essential oils) may have minor antimicrobial properties, but this is incidental to their use as fragrance.
Important note: Fragrance provides sensory benefits only — not direct skincare benefits. Most consumers enjoy fragranced products without issue. However, individuals with sensitive skin, eczema, rosacea, or known fragrance allergy should consider fragrance-free alternatives.
Most consumers tolerate fragranced cosmetics without issue. However, for those who do develop sensitisation, the risk is significant: the SCCS (2012) estimated roughly 1–3% of the general European population and up to 16% of eczema patients may be sensitised to fragrance ingredients. Contact allergy, once developed, is lifelong. The risk is concentrated in individuals with pre-existing skin conditions, those with high cumulative fragrance exposure, and those with a genetic predisposition to contact allergy.
While "Parfum" itself has no GHS codes (it is a mixture), many common fragrance allergens carry individual hazard classifications under ECHA Annex VI:
H317 — May cause allergic skin reaction H315 — Causes skin irritation H361 — Suspected reproductive harm
H317 (skin sensitisation) is the most commonly assigned code among fragrance allergens. Two substances have been banned: HICC/Lyral (Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde) was banned in August 2021 due to exceptionally high sensitisation rates; Lilial (Butylphenyl Methylpropional), which carried H361 (suspected reproductive toxicity), was banned in March 2022 due to CMR 1B classification. These are different substances with distinct safety concerns.
Cumulative exposure matters. Fragrance appears in skincare, body wash, shampoo, laundry detergent, household cleaners, and more. Even if each individual product is within safe concentration thresholds, layering multiple fragranced products increases your total daily exposure, which may increase sensitisation risk.
"Fragrance-free" vs "Unscented": "Fragrance-free" means no fragrance ingredients were intentionally added. "Unscented" means the product has no noticeable scent but may still contain masking fragrances or fragrance components from botanical extracts. If you are avoiding fragrance for allergy reasons, check the INCI list rather than relying on front-of-pack claims.
The SCCS could not establish safe thresholds for individual fragrance allergens for the general population. They noted that a general exposure level of up to 0.8 µg/cm² (0.01%) may be tolerated by most consumers who are already sensitised — but this does not prevent new sensitisation from occurring.
There is limited specific research on cosmetic fragrance exposure during pregnancy. The primary concern with fragrance is contact sensitisation rather than systemic toxicity, as most fragrance chemicals have limited dermal absorption at cosmetic concentrations. However, pregnancy can increase skin sensitivity and reactivity, potentially making fragrance-related reactions more likely. Some individual fragrance chemicals have raised specific concerns: Lilial (Butylphenyl Methylpropional) was classified as CMR 1B for suspected reproductive toxicity (GHS H361) and banned in the EU in March 2022. HICC/Lyral (Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde) was banned separately in August 2021 due to exceptionally high sensitisation rates — these are two different substances. Out of an abundance of caution, many dermatologists recommend switching to fragrance-free products during pregnancy and nursing. Always consult your healthcare provider for personalised advice.
If you have a history of eczema, contact dermatitis, rosacea, or known fragrance allergy, fragrance-free products are recommended. For others, patch-test new fragranced products on your inner forearm for 48 hours before applying to the face.
Look for "Parfum", "Fragrance", or individual allergens (Limonene, Linalool, Citronellol, etc.) in the ingredient list. Products labelled "natural" or "clean" may still contain fragrance allergens from essential oils or botanical extracts.
If you choose to use fragranced products, consider limiting fragrance to one or two products in your routine rather than every step. Prioritise fragrance-free formulations for leave-on products (serums, moisturisers) that remain on the skin for extended periods. Reserve fragrance for rinse-off products (cleansers, body wash) where contact time is shorter.
Contact allergy symptoms (redness, itching, small blisters) may not appear until 24–72 hours after exposure. If you experience recurring facial eczema, consider whether fragrance in your products could be the trigger — a dermatologist can perform patch testing to identify specific allergens.
Shorter skin contact time. Generally lower sensitisation risk than leave-on products.
Extended skin contact. Higher cumulative exposure. Fragrance-free is the safer choice here.
The safest option for sensitive skin. Check INCI for hidden fragrance components.
If you use active ingredients (retinol, AHAs, vitamin C), keep those fragrance-free and limit fragrance to one non-active product like a cleanser or body lotion.
Limiting fragrance to rinse-off products (cleansers, shampoo) reduces total skin contact time compared to leave-on products.
Ceramides, Niacinamide, and Panthenol help maintain a strong skin barrier, which may reduce the risk of irritation from fragrance ingredients.
Layering several fragranced products (cleanser + toner + serum + moisturiser + SPF) significantly increases cumulative fragrance exposure. Our DB conflict record confirms this risk.
AHAs (Glycolic, Lactic Acid) and BHAs (Salicylic Acid) compromise the skin barrier temporarily. Applying fragrance to freshly exfoliated skin may increase irritation and sensitisation risk.
Retinol can thin the stratum corneum and increase skin sensitivity. Using fragrance-containing products alongside retinol may heighten irritation. Consider fragrance-free retinol formulations.
Found in 40,729 products in our database — the most widely used ingredient after Water. Here are some well-known examples:
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