C18-36 Acid Glycol Ester

Benefits
Softening

What is C18-36 Acid Glycol Ester?

C18-36 Acid Glycol Ester is a synthetic compound created by reacting C18 to C36 fatty acids, often sourced from plant oils, with glycol such as ethylene glycol. It serves primarily as an emollient and emulsifier in skincare formulations like creams, lotions, and cleansers. In products, it functions by depositing a thin lubricating layer on the skin to enhance smoothness and reduce friction. As an emulsifying agent, it stabilizes mixtures of oils and water, preventing separation for even texture. Its surfactant role lowers surface tension, aiding in dirt removal and product application. This ingredient also contributes to skin conditioning by promoting flexibility and a soft feel without heavy occlusion, making it suitable for daily use in various personal care items.

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:

Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
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.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Provides softening effect for smoother skin texture.

Enhances product stability as an emulsifier for consistent formulas.

Supports gentle cleansing through surfactant properties.

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 dry or rough skin seeking emollient benefits.
Those with allergies to glycol-based compounds.
Users of lotions and creams for improved spreadability.
People sensitive to fatty acid derivatives.
Individuals preferring non-comedogenic ingredients in routines.
Users avoiding synthetic esters in formulations.

Safety Notes

  • Considered low hazard based on safety assessments.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about C18-36 Acid Glycol Ester

What does C18-36 Acid Glycol Ester do in products?

It softens skin, emulsifies oil-water mixes, and aids cleansing as a multifunctional agent.

Is it safe for daily skincare?

Rated low hazard and suitable for most, with no major concerns from assessments.

Does it cause breakouts?

Non-comedogenic rating of 0 indicates low risk for pore clogging.