Potassium Caseinate
AKA “Potassium salt of casein, Casein potassium salt”
Skin Conditioning
Ingredient Facts
Potassium caseinate
AKA: Potassium salt of casein, Casein potassium salt
Skin Conditioning · Hair Conditioning · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Not Clean
Potassium salt of casein
CAS #
68131-54-4
Form
Powder
See origin →
Functions
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
Casein (milk protein) has been used in cosmetics since ancient times. The potassium salt form was developed in the early 20th century to improve solubility and create protein-enriched cosmetic products.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: CosIng · EWG · CIR