Alpha-Isomethyl Ionone

Alpha-Isomethyl Ionone is a synthetic fragrance molecule with a violet-woody aroma used in cosmetics and perfumes. It's added to build distinctive scent accords and longevity, and it's listed for allergen disclosure in some regions.
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Ingredient Snapshot

Overview
A violet-woody fragrance ingredient used to build scent character.
Category
Fragrance
Type
Fragrance

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Provides a recognizable, elegant aroma that improves the overall sensory experience. Individuals prone to fragrance sensitivity may prefer to patch test.

Uses In Skincare & Cosmetics

Often used in fine fragrances, body lotions, and hair mists to create a signature bouquet.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

May cause irritation or allergic contact dermatitis, especially in sensitive skin. In the EU, it requires allergen labeling when above set thresholds. Discontinue use if redness or itching occurs.

Is Alpha-Isomethyl Ionone a Good Ingredient?

That puts it at Fair: it contributes a pleasant violet-woody scent but offers no direct skin benefits, and it’s a listed fragrance allergen that can trigger sensitivity in some users.

Products with Alpha-Isomethyl Ionone

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