Ingredient

Hydroxycitronellal

A fragrance ingredient — a synthetic aldehyde (derived from citronellal) with a sweet, fresh lily-of-the-valley (muguet) floral scent — added purely for scent, and one of the fragrance allergens the EU requires to be declared on cosmetic labels (Annex III).

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Caffeine

Temporarily de-puffs and brightens the look of tired skin and under-eyes.

Good to know

Fragrance allergen
One of the fragrance compounds the EU requires to be declared, because a minority of people react to it.

What it does

moderate evidence

Benefits

Adds a sweet, fresh lily-of-the-valley (muguet) floral scent note

Side effects

Can cause allergic contact dermatitis in sensitised people; it is one of the fragrance-mix chemicals dermatologists patch-test for
Offers no skin-care benefit — it is there for fragrance only