Potassium Hydrogenated Tallowate
AKA “Potassium Soap, Tallow Soap
Surfactant
Ingredient Facts
Potassium hydrogenated tallowate
AKA: Potassium Soap, Tallow Soap
Surfactant · Cleansing · EWG: 4
Synthetic
Cleanser
Not Clean
Potassium salt of hydrogenated tallow acid
Form
Liquid
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Cleansing Surfactant
Removes Impurities
Traditional Use
A modern synthetic surfactant made from hydrogenated animal fat (tallow) combined with potassium. Developed as an inexpensive, stable cleansing agent for industrial and cosmetic applications.
Skin Types
all-skin-types
Best For
General
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