Corylus avellana (Hazelnut) seed extract
AKA “Hazelnut Seed Extract
Extract
Ingredient Facts
Corylus avellana (Hazelnut) seed extract
AKA: Hazelnut Seed Extract
Extract · Antioxidant · EWG: 4
Plant-Derived
Antioxidant
Astringent
Skin Conditioner
Extract
Clean
Science: Origin: Botanic/Natural | Process: Solvent Extraction ⚠ Allergen Alert (Tree Nut): Derived from a common allergen source. May cause reactions in sensitive individuals. Safety Ratings: CIR: Insufficient data
Family
Betulaceae (Birch family)
Plant Part
Seed
Lifeform
Shrub or tree
Climate
Temperate
CAS #
84012-21-5
Form
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Astringent
Tightens and contracts skin tissue, temporarily shrinking pores and reducing oiliness. That "clean, tight" feeling after toner.
Conditions Skin
Reduces Inflammation
Locks In Moisture
Softens & Smooths
Traditional Use
Hazelnut has been cultivated and used in European cosmetics and folk medicine for over 2,000 years. Ancient Greeks and Romans valued it for skin nourishment and as a base for cosmetic oils.
Skin Types
all-skin-types
Best For
Antioxidant
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Tree Nut (Hazelnut)
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Potential Sensitizer
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
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Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Feb 2026
Data: Kew POWO · CosIng · EWG · CIR