Cocoyl Sarcosine

Benefits

Hair ConditioningCleansing

What is Cocoyl Sarcosine?

Cocoyl sarcosine is an anionic surfactant produced by combining sarcosine, a simple amino acid derivative (N-methylglycine), with fatty acids derived from coconut oil. It belongs to the sarcosinate family of mild cleansing agents commonly found in shampoos, facial cleansers, body washes, and toothpastes. In formulations, it works by reducing surface tension between water, oils, and dirt, allowing effective removal of impurities while producing a rich, stable foam. Its conditioning properties stem from its ability to deposit a light film on hair shafts, minimizing friction for smoother combing and reduced static. Compared to harsher sulfates, it offers better compatibility with skin and hair proteins, making it suitable for frequent-use products. Regulatory bodies affirm its safety in rinse-off and leave-on cosmetics at typical concentrations.

Comedogenic Rating 0/5 Low risk of clogging pores

EWG Safety Rating 1-2 View on EWG →

PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Hair conditioning

Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.

Surfactant

Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.

Cleansing agent

Removes dirt, oil, and impurities by lowering surface tension and forming micelles, enabling soils to be lifted and rinsed away from skin, hair, or teeth.

Benefits

Provides gentle cleansing by effectively lifting dirt and oils without stripping natural moisture.

Enhances hair conditioning, improving softness, shine, and ease of styling.

Supports stable foaming in washes and shampoos for a luxurious lather.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit	Who Should Avoid
Individuals with sensitive skin seeking mild, non-drying cleansers.	Those with known allergies to coconut-derived ingredients.
People with normal to dry hair needing conditioning without heaviness.	People experiencing irritation from amino acid-based surfactants.
Users of daily shampoos or body washes preferring foam-rich formulas.	Individuals with extremely reactive skin barriers.

Safety Notes

Rated low hazard by environmental health assessments.
Deemed safe for cosmetic use by expert review panels.

Frequently Asked Questions about Cocoyl Sarcosine

What is cocoyl sarcosine derived from?

It's made from sarcosine, an amino acid derivative, esterified with coconut fatty acids.

Is it suitable for sensitive skin?

Yes, it's recognized as a mild surfactant with low irritation potential.

What products commonly contain it?

Shampoos, facial cleansers, body washes, and some oral care items.