Ammonium Caseinate
AKA “Ammonium salt of casein
Skin Conditioning
Ingredient Facts
Ammonium caseinate
AKA: Ammonium salt of casein
Skin Conditioning · Antistatic · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Not Clean
Casein, ammonium salt
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
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR