Chanel N°5 Eau de Parfum

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.

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.

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 with mild preservative function; contact dermatitis is documented in spray fragrances.

IFRA / EU-declared fragrance allergen and known dermal sensitizer; SCCS has flagged repeated leave-on exposure as a concern.

IFRA / EU-declared fragrance allergen; cinnamate-class compounds are frequent contact sensitizers.

IFRA / EU-declared fragrance allergen and weak photoallergen. Recent SCCS reviews have raised concerns about possible endocrine activity at typical fine-fragrance use levels.

IFRA / EU-declared fragrance allergen; oxidizes in air to cinnamaldehyde, a strong contact sensitizer.

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.

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. Category 2 skin sensitizer; the EU SCCS has flagged it for cumulative exposure risk across multiple fragranced products.

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 floral-musky odor. Documented dermal sensitizer.

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

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.

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; recognized dermal sensitizer with cumulative-exposure concerns.

Chemical UV filter added to prevent fragrance discoloration in clear bottles. Documented photoallergen; mild estrogenic activity in cell and animal studies. Unnecessary in a product that isn't a sunscreen.

Coal-tar azo dye (Tartrazine) added for bottle color. Frequent contact-sensitizer in topical products; aesthetic-only addition. FDA-banned in foods in California (2024) for behavioral effects.

Coal-tar azo dye added for bottle color. Frequent contact-sensitizer in topical products; aesthetic-only addition with no consumer benefit.

Coal-tar xanthene dye added for bottle color. Listed irritant and possible contact sensitizer in topical use per published cosmetic-safety panels. Aesthetic-only.

Coal-tar azo dye used for the bottle aesthetic. Azo dyes are a known class of contact sensitizers in topical/leave-on products and are phased out by clean-formulation brands.

Ethanol-based solvent carrier (~80% of formula). Drying to skin but otherwise inert.

Solvent; safe.