Ammonium Coco-Sulfate
AKA “Ammonium Coconut Sulfate, Coconut Sulfate
Surfactant
Ingredient Facts
Ammonium coco-sulfate
AKA: Ammonium Coconut Sulfate, Coconut Sulfate
Surfactant · Cleansing · EWG: 4
Synthetic
Cleanser
Emulsifier
Plant Oil
Not Clean
Sulfuric acid, coco alkyl mono-ester, ammonium salt
CAS #
90989-98-3
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.
Foaming
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.
Removes Impurities
Creates Lather
Cleansing Surfactant
Emulsifier
Reduces Inflammation
Locks In Moisture
Removes dirt and impurities
Creates cleansing foam
Lifts away dirt and oil
Mixes oil and water
Traditional Use
Synthesized in the mid-20th century as a sulfated derivative of coconut oil for use as a detergent and surfactant. Created to provide gentle cleansing properties inspired by coconut oil's traditional use in tropical skincare.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Tree Nut (Coconut)
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