Magnesium Laureth-3 Sulfosuccinate
AKA “Magnesium laureth-3 sulfosuccinate
Synthetic
Ingredient Facts
Magnesium laureth-3 sulfosuccinate
Synthetic · Cleansing · EWG: 4
Synthetic
Cleanser
Synthetic
Clean
Poly(oxy-1,2-ethanediyl), .alpha.-dodecyl-.omega.-3-carboxy-1-oxo-2-sulfopropyloxy-, magnesium salts (3 mol EO average molar ratio) Science: Functions: Cleansing, Surfactant - Cleansing Safety Ratings: CIR: Safe as used
CAS #
68311-03-5; 39354-45-5; 58450-52-5; 40754-59-4; 42015-08-0; 68815-56-5
Form
Powder
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
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Surfactant Cleansing
Anti-Inflammatory
Fights Acne
Antioxidant
Protects skin from free radical damage caused by UV, pollution, and stress
Removes dirt and impurities
Lifts away dirt and oil
Traditional Use
A modern synthetic surfactant developed in the late 20th century. Created as a mild, biodegradable cleansing agent for sensitive skin formulations in response to consumer demand for gentler products.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
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