Castanea Sativa (Chestnut) Seed Extract
Castanea Sativa (Chestnut) Seed Extract
Botanical extract from sweet chestnut seeds (Castanea sativa) used in cosmetics mainly for antioxidant and skin-conditioning support. Chestnut-derived extracts are rich in phenolic compounds such as tannins and flavonoids, which are associated with antioxidant activity and potential anti-aging support in topical formulations. Evidence specific to the seed extract is limited, so most cosmetic use is extrapolated from broader chestnut-byproduct research and ingredient listings. ([incidecoder.com](https://incidecoder.com/ingredients/castanea-sativa-seed-extract?utm_source=openai))
Benefits
Chemical Properties
Skin Type Compatibility
Interactions
Risks & Warnings
Potential risks are mainly botanical-extract related: mild irritation, stinging, or allergic/sensitization reactions in reactive skin. Clinical evidence specific to Castanea sativa topical use is limited; one chestnut leaf extract patch-test study reported no significant irritation in volunteers, but that does not guarantee tolerance for all seed-extract formulations. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/18793273/?utm_source=openai))
