PEG-2 Cocamine

What is PEG-2 Cocamine?

PEG-2 Cocamine consists of a cocamine molecule, derived from natural fatty acids in coconut oil, chemically modified by adding two units of ethylene oxide to form a polyethylene glycol ether. This creates a cationic (positively charged) compound commonly used in rinse-off cosmetics like shampoos, conditioners, body washes, and facial cleansers. As a surfactant, it lowers the surface tension between water, oils, and dirt, facilitating effective removal of residues during rinsing. Its emulsifying action helps blend oil and water phases, contributing to product stability and smooth texture in formulations. The short PEG-2 chain minimizes potential residue on skin or hair compared to longer chains. Primarily found in hair care for conditioning effects and in cleansing products for foam generation, it supports gentle yet thorough cleaning without stripping natural moisture excessively.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3 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.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.

Benefits

Enhances foaming in shampoos and cleansers for a satisfying lather during washing.

Stabilizes emulsions in lotions and conditioners, ensuring even distribution and consistent feel.

Provides antistatic properties in hair products, reducing frizz and improving manageability.

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 seeking effective cleansing in daily shampoos or body washes with good foam.
Those with very sensitive skin prone to reactions from cationic surfactants.
Individuals with normal hair types wanting conditioning surfactants for smoother strands.
People experiencing irritation from amine-based ingredients in past products.
Users of emulsion-based cleansers preferring stable, non-separating formulas.
Individuals preferring fully natural, non-ethoxylated cleansing agents.

Safety Notes

  • Rated moderate hazard by some databases due to potential skin or eye irritation at high levels.
  • Deemed safe for use in cosmetics when formulated to minimize irritation risks.

Frequently Asked Questions about PEG-2 Cocamine

What is PEG-2 Cocamine derived from?

It comes from cocamine, sourced from coconut oil fatty acids, ethoxylated with two PEG units.

Is PEG-2 Cocamine comedogenic?

It has a comedogenic rating of 0, indicating low likelihood of pore clogging.

Can it cause irritation?

Possible mild irritation for sensitive skin; generally low risk in diluted rinse-off formulas.