Intelligence · Ingredients

The ingredient narratives reshaping clean beauty.

fragrance component
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Hydroxycitronellal

aka 2-(4-methylpentyl)-1,3-dioxolane-2-acetaldehyde (IUPAC) · 7-hydroxy-3,7-dimethyloctanal

Synthetic fragrance ingredient contributing sweet, soft, floral/muguet (lily of the valley) notes to fine fragrance. On the EU's 26 mandatory fragrance allergen disclosure list.

Benefits
  • Sweet, soft, muguet (lily of the valley) fragrance character
  • Used in floral and aldehydic fragrance compositions
  • Soft, powdery base note modifier
  • Mid-to-low volatility fixative function
  • Used in both prestige and mass fragrance
Example uses
  • Fine fragrance
  • Floral body lotions
  • Eau de toilette
  • Fragrance-preserved haircare
  • Skin-scented serums
Formulation notes

Oil-soluble fragrance component. EU mandatory allergen disclosure required. IFRA use restrictions for leave-on applications.

Watchouts

Documented contact allergen — on EU mandatory disclosure list. Higher sensitisation rate compared to some other fragrance allergens. IFRA has issued restricted use guidelines in leave-on products.

Clean beauty perception

Scrutinised in clean-beauty fragrance transparency. Rarely disclosed at ingredient level by consumer-facing brands using complex fragrance compositions.