Ammonium Caseinate

Ammonium Caseinate 1
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Ammonium Caseinate 2
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AKA: Ammonium salt of casein
Synthetic
Skin Conditioner
Hair Care
Not Clean
OriginDerived from milk protein casein, which is chemically treated and ammoniated to create the ammonium salt form. Produced by reacting casein protein with ammonia or ammonium hydroxide under controlled conditions.
Casein, ammonium salt
CAS #
9005-42-9
Form
Powder
Skin Types
●all-skin-types
Best For
Dryness
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-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2022
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR