Sodium Cocoyl Amino Acids

What is Sodium Cocoyl Amino Acids?

Sodium Cocoyl Amino Acids is an anionic surfactant formed by acylating amino acids, such as glycine or sarcosine, with fatty acids from coconut oil. This natural-derived ingredient appears in rinse-off cosmetics like facial cleansers, shampoos, body washes, and shaving products. It works by decreasing surface tension at the interface of water, oils, and skin, forming micelles that encapsulate dirt, sebum, and residues for effortless removal during rinsing. The amino acid component enhances its biocompatibility, reducing disruption to the skin's hydrolipidic film while generating a dense, creamy lather. Valued for biodegradability and pH compatibility near skin's natural level, it supports formulations targeting mildness over aggressive cleansing.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

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

Offers gentle yet thorough cleansing of dirt and excess oils.

Creates abundant, stable foam for satisfying texture in products.

Supports skin barrier integrity with minimal drying effect.

Who It's For

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

Who May Benefit Who Should Avoid
People with sensitive or easily irritated skin.
Those with rare allergies to coconut-derived components.
Individuals seeking sulfate-free cleansing options.
People experiencing contact dermatitis from acyl amino acid surfactants.
Users of daily face and body washes needing mild surfactants.
Individuals with severely damaged skin barriers.

Safety Notes

  • Deemed safe for cosmetic applications in safety reviews.
  • Exhibits low irritation potential in typical rinse-off uses.

Frequently Asked Questions about Sodium Cocoyl Amino Acids

What makes Sodium Cocoyl Amino Acids mild?

Its amino acid structure mimics skin components, minimizing barrier disruption during cleansing.

In which products is it commonly used?

Facial cleansers, shampoos, body washes, and shaving foams for gentle surfactant action.

Does it dry out the skin?

No, it cleanses without stripping natural oils, preserving moisture balance.