Potassium Cocoyl Sarcosinate

AKA: Coconut sarcosinate, Mild surfactant

Allergen Warning

⚠️ Tree Nut (Coconut)

Synthetic

Cleanser

Skin Conditioner

Hair Care

Amino Acid

Plant Oil

Not Clean

Potassium Cocoyl Sarcosinate is the potassium salt of Cocoyl Sarcosine

CAS #

-

Form

Liquid

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.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed0 reviews

Counts, not a verdict. A listing isn't a study. The trail, you decide.

Verified Jun 2026

Data: CosIng · EWG · CIR