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Corylus rostrata (Hazelnut) seed extract
AKA “Hazelnut Seed Extract”
Extract
Ingredient Facts
Corylus rostrata (Hazelnut) seed extract
AKA: Hazelnut Seed Extract
Extract · Skin Conditioning · EWG: 4
Plant-Derived
Skin Conditioner
Extract
Not Clean
Corylus Rostrata (Hazelnut) Seed Extract is a cosmetic ingredient used as skin conditioning.
Family
Betulaceae (Birch family)
Plant Part
Seed
Lifeform
Shrub
Climate
Temperate
CAS #
92-44-4
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.
Conditions Skin
Antioxidant Protection
Reduces Inflammation
Locks In Moisture
Softens & Smooths
Traditional Use
Traditional North American use of beaked hazelnut seeds as a nutritive ingredient for skin care and general health, valued for the seed's rich nutritional profile.
Skin Types
●all-skin-types
Best For
Antioxidant
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Tree Nut (Hazelnut)
EWG
4
CIR
Insufficient data
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Potential Sensitizer
Regulatory Status
USAunder review
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Corylus Americana (Hazelnut) Leaf Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Corylus Americana (Hazelnut) Seed Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Corylus Avellana (Hazelnut) Leaf Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Corylus Avellana (Hazelnut) Seed Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Corylus Rostrata (Hazelnut) Leaf Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Corylus Rostrata (Hazelnut) Seed Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hazelnut Seed Oil Polyglyceryl-6 Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrogenated Hazelnut Oil
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrolyzed Hazelnut Protein
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Polyglyceryl-4 Hazelnutseedate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hydrolyzed Hazelnut Protein
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Verified Jun 2026
Data: Kew POWO · CosIng · EWG · CIR