Potassium Hydrogenated Tallowate
AKA “Potassium Soap, Tallow Soap
Synthetic
Ingredient Facts
Potassium hydrogenated tallowate
AKA: Potassium Soap, Tallow Soap
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Synthetic
Clean
Potassium salt of hydrogenated tallow acid Science: Process: Catalytic Hydrogenation | Functions: Surfactant - Cleansing Safety Ratings: CIR: Safe as used
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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
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
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR