Ammonium Caseinate
AKA “Ammonium salt of casein”
Synthetic
Ingredient Facts
Ammonium caseinate
AKA: Ammonium salt of casein
Synthetic · Antistatic · EWG: 4
Plant-Derived Synthetic
Skin Conditioner
Hair Care
Synthetic
Clean
A milk-derived protein that helps smooth and condition hair and skin while reducing frizz and static for a polished finish.
CAS #
9005-42-9
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
Developed in the early 20th century as a milk protein derivative for use in cosmetics and pharmaceuticals. Used in modern skincare as a film-forming and conditioning agent with no significant traditional use history.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR