Guaiazulene

Guaiazulene is a naturally derived blue hydrocarbon related to azulene, used in cosmetics as a color additive. It gives a blue tone, offsets yellowish tints in formulas, and cues calming-themed positioning in after-sun and sensitive lines.
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Ingredient Snapshot

Overview
A naturally derived blue pigment used to signal a calming, soothing feel.
Category
Color, Soothing
Type
Colorant

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Lends a cool blue hue that visually signals a calming experience and can help neutralize warm tints in formulas. Any soothing effect on skin is considered modest, with limited clinical support in modern leave-on products.

Uses In Skincare & Cosmetics

Seen in post-sun lotions, aftershave balms, and blue-tinted face creams to balance color. Also used in gel masks and serums where a blue tone is desired without staining the skin.

Comedogenic Rating

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

Safety

Usually used at low levels, but it can cause irritation or contact dermatitis in sensitive skin. Avoid use on compromised skin if irritation develops.

Is Guaiazulene a Good Ingredient?

It's Fair because it imparts a blue hue and may provide modest soothing, but the modern clinical support for the soothing claim is limited, and it carries a known sensitization risk in some users, which keeps the rating moderate.

Products with Guaiazulene

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