Paco Rabanne 1 Million Eau de Toilette

Ethanol-based solvent carrier (~80% of formula). Drying to skin but otherwise inert; denaturant identity is not disclosed.

Trade-secret blanket term that legally conceals dozens to hundreds of individual aromachemicals. Designer fragrance blends almost always contain synthetic polycyclic musks (Galaxolide, Tonalide) — endocrine disruptors that bioaccumulate in human fat tissue, breast milk, and wastewater — alongside Ambroxan, Iso E Super, and historically DEP phthalate solvents. No disclosure obligation in the US.

Solvent; safe.

IFRA / EU-declared fragrance allergen. Category 2 skin sensitizer; the EU SCCS has flagged it for cumulative exposure risk across multiple fragranced products.

IFRA / EU-declared fragrance allergen. Oxidizes on skin and in the bottle into stronger sensitizers; one of the top causes of fragrance contact dermatitis. Required label disclosure means it is present above 0.001% in this leave-on product.

EU 26 fragrance allergen and well-documented strong dermal sensitizer. The closely related Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde (HICC / Lyral) was banned by the EU in 2021 for the same class of sensitization issues; hydroxycitronellal itself remains restricted but is repeatedly cited in patch-test registries as a top fragrance allergen.

IFRA / EU-declared fragrance allergen; recognized dermal sensitizer with cumulative-exposure concerns.

IFRA / EU-declared fragrance allergen. Air-oxidized linalool hydroperoxides are confirmed contact sensitizers — exposure is high in spray-on fragrance.

IFRA / EU-declared fragrance allergen with mild preservative function; contact dermatitis is documented in spray fragrances.

EU 26 fragrance allergen — one of the strongest dermal sensitizers in the IFRA standards. IFRA imposes strict use-level caps in leave-on products precisely because cinnamaldehyde causes high rates of contact dermatitis.

IFRA / EU-declared fragrance allergen. Clove-derived; documented strong dermal sensitizer with IFRA-restricted use levels in leave-on products.

IFRA / EU-declared fragrance allergen with strong sensitizing potential — IFRA restricts maximum use levels in leave-on products specifically because of its high contact-allergy rate.

EU 26 fragrance allergen and a top-strength dermal sensitizer per IFRA. Use level in leave-on products is capped at 0.02% by IFRA because of its high allergic-contact-dermatitis rate.

IFRA / EU-declared fragrance allergen. Recognized dermal sensitizer; one of the most frequently cited fragrance allergens in patch-test studies.

IFRA / EU-declared fragrance allergen with rose-like odor. Documented skin sensitizer; oxidation products are even more reactive.

BANNED in EU cosmetics since March 2022 as a CMR (Carcinogen / Mutagen / Reproductive toxin, Category 1B) under EU Regulation 2021/1902. Animal studies showed reproductive toxicity. Still legal and used in US-market designer fragrances. Single most concerning ingredient in any modern leave-on cosmetic.