Soytrimonium Chloride

AKA “Soybean Trimonium Chloride, Soy Quaternary”

Synthetic

Ingredient Facts

Soytrimonium chloride

AKA: Soybean Trimonium Chloride, Soy Quaternary

Synthetic · Cleansing · EWG: 4

Plant-Derived Synthetic

Preservative

Cleanser

Emulsifier

Skin Conditioner

Hair Care

Synthetic

Clean

A plant-derived conditioner and cleanser that helps reduce frizz and static while gently cleansing. Works to soften hair and maintain product stability.

CAS #

61790-41-8

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.

Preservative

Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.

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.

Reduces Static

Conditions Hair

Preserves Formula

Cleansing Surfactant

Traditional Use

Modern cationic conditioning agent derived from soybean protein. Created in the late 20th century as a plant-based alternative to synthetic quaternary ammonium compounds, designed to provide hair conditioning benefits inspired by the protein-rich composition of soybeans.