The material selection platform
Cosmetics Ingredients
The material selection platform
Cosmetics Ingredients


CAS Number 68439-49-6
Chem/IUPAC Name: C16-18 alcohols, ethoxylated (12 mol EO average molar ratio)
COSING REF No: 75097
Ceteareth-12 is an ingredient commonly used in cosmetics as an emulsifier, surfactant, and solubilizer. It belongs to the Ceteareth family of compounds, which are derived from the reaction of ethylene oxide with fatty alcohols. Ceteareth-12 is often used in formulations to help blend and stabilize oil and water phases, allowing for the creation of smooth and uniform products. It is frequently found in skincare products, including creams, lotions, and cleansers. Ceteareth-12 may also be combined with other ingredients, such as Centella Asiatica extract, to provide additional benefits for the skin. The chemical formula of Ceteareth-12 is C18H38O, and it is typically in the form of a waxy white solid.

What is CETEARETH-12 used for?

Ceteareth-12 finds various uses in cosmetics due to its versatile properties. It serves as an effective emulsifier, allowing oil and water-based ingredients to blend seamlessly in formulations such as creams, lotions, and serums. By stabilizing the emulsion, Ceteareth-12 helps maintain the product's consistency and prevents separation. As a surfactant, it enhances the cleansing ability of cosmetic products like cleansers and shampoos by helping to remove dirt and oils from the skin and hair. Ceteareth-12 can also act as a solubilizer, aiding in the dispersal of insoluble ingredients in water-based formulations. Its multifunctional nature makes it a valuable ingredient for creating stable, effective, and well-formulated cosmetic products.


Ceteareth-12 is produced through the ethoxylation process, where ethylene oxide is reacted with a fatty alcohol (such as cetyl alcohol). This reaction leads to the formation of the Ceteareth-12 compound. The resulting product is then purified and used as an ingredient in cosmetics for its emulsifying and surfactant properties.

What does CETEARETH-12 do in a formulation?

  • Emulsifying
  • Surfactant

Safety profile

Ceteareth-12 is considered safe for use in cosmetics when used in accordance with recommended concentrations. It has a low toxicity profile and is generally well-tolerated by the skin. However, like any cosmetic ingredient, individual sensitivities may vary. It is advisable to conduct patch tests and discontinue use if any adverse reactions occur.

Technical profile

Property Values
Melting Point 40-46°C
pH 5.0-7.0
Solubility Soluble in water
Viscosity Low

Commercial Selection : Grades containing solely CETEARETH-12

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