Sodium Caseinate

Sodium Caseinate molecular structure
molecular structure · PubChem
AKA: Milk Protein
Synthetic
Skin Conditioner
Hair Care
Clean
OriginDerived from milk protein (casein), a naturally occurring dairy protein chemically modified for cosmetic use. Produced through alkaline treatment of casein to create a soluble sodium salt form.
Caseins, sodium complexes
CAS #
9005-46-3
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
2
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.1%
Rinse-off2.5%
0%50%100%
CIR reported use · report published 2022
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR