Castanea Crenata (Chestnut) Shell Extract
A chestnut shell extract with antioxidants. It supports defense and an even skin tone. Well tolerated.
Evidence by route
Topical application
An antioxidant plant extract. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Chestnut shell extract is obtained from Castanea crenata. INCI: Castanea Crenata (Chestnut) Shell Extract. In a formula it works as a brightening and antioxidant component: it contains polyphenols credited with tyrosinase inhibition and protection from oxidative stress, so the extract is used against dark spots and for evening out tone. There are lab and early clinical data for its brightening action, but the base is more modest than for established depigmenting agents. It is a supporting active. Pregnancy safety. Topical use is systemically negligible, with no evidence of harm. It can be used during pregnancy and lactation. Tolerance. Irritation and allergen potential are low, suitable for sensitive skin.
Frequently asked questions
Is Castanea Crenata (Chestnut) Shell Extract safe during pregnancy?
Castanea Crenata (Chestnut) Shell Extract is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Castanea Crenata (Chestnut) Shell Extract for?
Castanea Crenata (Chestnut) Shell Extract suits: normal, dry, combination, oily, sensitive.
What is Castanea Crenata (Chestnut) Shell Extract and what does it do in cosmetics?
A chestnut shell extract with antioxidants.
What's the INCI name for Castanea Crenata (Chestnut) Shell Extract?
The INCI name is Castanea Crenata Shell Extract. It may also appear as: Chestnut Shell Extract.
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