Juglans Nigra (Black Walnut) Shell Extract

Juglans nigra (black walnut) shell extract is a botanical ingredient sourced from the hard pericarp of the nut. It's incorporated for natural color and an astringent sensory effect in formulas, though evidence for direct skin improvements remains limited.
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Ingredient Snapshot

Overview
A walnut shell extract used for natural color and a brief tightening feel.
Category
Skin Conditioning, Tone/Texture, Color
Type
Botanical Extract

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

May impart a brief tightening sensation and contribute to a more refined look; overall skin benefits are not strongly supported by research.

Uses In Skincare & Cosmetics

Used in toners, clay masks, and tinted formulations to add a deeper hue and a taut feel.

Comedogenic Rating

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

Safety

Has a notable irritation/sensitization potential; patch test before use and avoid compromised skin. Those sensitive to botanical astringents or walnut derivatives should use caution.

Is Juglans Nigra (Black Walnut) Shell Extract a Good Ingredient?

Rated Fair because evidence for meaningful skin benefit is limited, and its value is mostly about color and an astringent feel. Tannins and juglone in the extract can irritate or sensitize some users, which is what keeps the rating from climbing to Good.

Products with Juglans Nigra (Black Walnut) Shell Extract

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