Ingredient
Ceteareth-20
What is Ceteareth-20?
Ceteareth-20 is a nonionic surfactant and emulsifier made by reacting Cetearyl Alcohol with 20 units of ethylene oxide. It typically appears as a white, waxy solid used in various personal care products.
Ceteareth-20 is used to help mix water and oil-based ingredients, keeping the texture of lotions and creams smooth and stable. The evidence around its safety is mixed, with concerns mainly focused on contamination with potentially harmful byproducts like 1,4-dioxane if not properly purified.
When you see Ceteareth-20 on a label, it's likely serving to stabilize the product and enhance its application ease. However, look out for certifications or company statements regarding impurities, particularly when considering products labeled as 'natural' or 'organic'.
Commonly found in: Body lotions, Creams, Conditioners, Hair care products, Moisturizers
What to watch
- May be contaminated with 1,4-dioxane, a potential carcinogen, if not adequately purified.
Considered safe for use in cosmetics but should be free from impurities like 1,4-dioxane.
Generally safe for topical use, but some studies raise concerns about possible contamination during production.
Ceteareth-20 is not derived from animals and is typically considered suitable for vegans.
Sources: Cosmetic Ingredient Review: Ceteareth-20 · Safety Assessment of Ceteareth-20 and Related Compounds
Scout's take
Ceteareth-20 is an emulsifier that helps to blend oil and water-based ingredients. It is commonly used in cosmetic formulations.
The case against
There is a potential risk of contamination with 1,4-dioxane, a byproduct of ethoxylation.
from the analysis of Sukin DeodorantThe case for
Helps to stabilize formulations by blending oil and water components.
from the analysis of Sukin DeodorantMore from Scout's analyses
Ethoxylated emulsifier; possible 1,4-dioxane contamination.
from the analysis of AmLactin Daily Nourish 12% Lactic Acid LotionFound in 2 products
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