Hydroxycitronellal

A fresh, flowery scent.

What it does

A scent ingredient with a fresh, flowery smell.

One of the EU's listed fragrance allergens, so sensitive skin may react. The EU caps it at 1% in most products. Clovi flags it as fragrance.

Often found in: Deodorants, Perfumes, Shampoos

United States: No label rule yet. A 2022 law told the FDA to require fragrance allergen labels, but that rule isn't out. Source
EU and UK: Max 1% outside oral products. Must be named on the label above 0.001% in leave-on and 0.01% in rinse-off products. Source
Canada: Must be named on the label above 0.001% in leave-on and 0.01% in rinse-off products (since April 2026). Source
Australia: No limit in Australia's Poisons Standard. Source

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