Ingredient
Castanea Crenata (Chestnut) Shell Extract
INCI name: Castanea Crenata Shell Extract
Japanese Chestnut Shell Extract
Chestnut Burr Extract
What it is
An extract from the shell of the Japanese chestnut, rich in flavonoids and tannins, popular in Korean centella-adjacent formulas for its antioxidant benefits.
How it works
Its polyphenol and flavonoid content helps neutralize free radicals and calm minor surface irritation, supporting the skin's resilience to environmental stress.
What it does
Skin conditioning
Antioxidant
Soothing
Concerns to know
-
Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.