Researched by Helena DeMaria-Williams
Formula IngredientEmulsifierCeteareth-20
INCI: Ceteareth-20
Ceteareth-20 is an ethoxylated fatty alcohol emulsifier created by adding an average of 20 moles of ethylene oxide to cetearyl alcohol. It is a hydrophilic (water-loving) emulsifier that helps blend oil and water phases in cosmetic formulations, producing stable creams and lotions. It also functions as a mild surfactant and thickener.
Category
Emulsifier
Irritation Risk
Medium
Skin Types
normal, dry, combination skin types
What does this do in a formula?
emulsification, formula stabilisation, thickening, oil-water blending
Is Ceteareth-20 safe? Key considerations
Can Ceteareth-20 cause irritation?
Medium RiskINCIDecoder rates irritancy at 3. As an ethoxylated ingredient, it can be mildly irritating to very sensitive skin. There is a theoretical concern about trace 1,4-dioxane contamination from the ethoxylation process, though reputable manufacturers purify to remove this. No EU CosIng Annex II or III restrictions apply.
Does Ceteareth-20 increase sun sensitivity?
No RiskCeteareth-20 does not increase photosensitivity.
Is Ceteareth-20 safe during pregnancy?
SafeCeteareth-20 is a standard cosmetic emulsifier with no systemic absorption concerns at typical concentrations. It is considered safe during pregnancy.
How does Ceteareth-20 work?
Ceteareth-20 is an ethoxylated fatty alcohol emulsifier created by adding an average of 20 moles of ethylene oxide to cetearyl alcohol. It is a hydrophilic (water-loving) emulsifier that helps blend oil and water phases in cosmetic formulations, producing stable creams and lotions. It also functions as a mild surfactant and thickener.
Individuals with very sensitive skin, highly acne-prone skin should review the considerations above before use.
Which products contain Ceteareth-20?
Shop products that contain Ceteareth-20
