Castanea Crenata (Chestnut) Shell Extract

Castanea crenata (chestnut) shell extract is a botanical from the hard outer shell, containing tannins and other polyphenols. It's used to promote a fresher look and refined feel, lending balance and mattifying aesthetics; evidence is limited.
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Ingredient Snapshot

Overview
Chestnut shell extract that may help curb oily shine.
Category
Antioxidant, Oil Control, Skin Conditioning
Type
Botanical Extract

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

May help curb surface shine and promote a more uniform appearance, providing a subtle clarifying boost for complexions prone to looking oily; data supporting these effects is limited.

Uses In Skincare & Cosmetics

Found in oil-control primers, gel moisturizers, and toners, and also used in clay masks designed for a mattified finish.

Comedogenic Rating

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

Safety

Can be mildly irritating or drying because of its astringent nature; patch test if skin is sensitive. No widely recognized regulatory restrictions at customary cosmetic use levels.

Is Castanea Crenata (Chestnut) Shell Extract a Good Ingredient?

Oil-control and antioxidant effects are suggested by its polyphenol and tannin content, but human evidence is limited, which is why it's rated Fair. Astringent tannins can also increase dryness or irritation, especially on sensitive or already dry skin.

Products with Castanea Crenata (Chestnut) Shell Extract

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