Casein
AKA “Casein Extract”
Skin Conditioning
Ingredient Facts
Casein
AKA: Casein Extract
Skin Conditioning · Antistatic · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Not Clean
Caseins. A complex combination produced in mammary tissue from amino acids supplied by the blood. It contains several proteins, phosphorus, and calcium
CAS #
9000-71-9
Form
Powder
See origin →
Functions
Antistatic
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
Derived from milk, casein has been used in traditional skincare for centuries, particularly in European folk practices. Applied topically in poultices and creams for its protein content and skin-softening properties, especially in facial treatments.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Ammonium Caseinate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Calcium Caseinate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Casein
European Commission
EU Cosmetic Ingredient Database (CosIng)
Casein Extract
European Commission
EU Cosmetic Ingredient Database (CosIng)
Hydrolyzed Casein
European Commission
EU Cosmetic Ingredient Database (CosIng)
Potassium Caseinate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sodium Caseinate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sodium Hydrolyzed Casein
European Commission
EU Cosmetic Ingredient Database (CosIng)
Hydrolyzed Casein
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Sodium Caseinate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Nano-encapsulation of Glabridin using enzymatically hydrolyzed sodium caseinate for improved bioavailability and functional applications.
Tariq M, Qi H, Zakirullah, Zakareya, Liang H
International journal of biological macromolecules, 2025
A self-powered casein hydrogel E-dressing with synergistic photothermal therapy, electrical stimulation, and antibacterial effects for chronic wound m
Xu Y, Xu X, Zhao Y, Tian Y, Ma Y et al.
Acta biomaterialia, 2025
Verified Jun 2026
Data: CosIng · EWG · CIR