Potassium Cocoyl Sarcosinate
AKA “Coconut sarcosinate, Mild surfactant
Synthetic
Ingredient Facts
Potassium cocoyl sarcosinate
AKA: Coconut sarcosinate, Mild surfactant
Synthetic · Cleansing · EWG: 4
Plant-Derived Synthetic
Cleanser
Skin Conditioner
Hair Care
Amino Acid
Plant Oil
Synthetic
Clean
Potassium Cocoyl Sarcosinate is the potassium salt of Cocoyl Sarcosine Science: Functions: Hair Conditioning, Surfactant - Cleansing Safety Ratings: CIR: Safe as used
CAS #
-
Form
Liquid
See origin →
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Conditions Hair
Cleansing Surfactant
Lifts away dirt and oil
Softens and detangles hair
Traditional Use
Synthetic surfactant derived from coconut oil and sarcosine (an amino acid derivative). Developed in the 20th century as a mild, biodegradable detergent for shampoos and cleansers.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Tree Nut (Coconut)
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
Potassium Cocoyl Sarcosinate — Duck Heart Ghost