Ingredient · Updated
Isoceteth-20
Found in 2 products
What is Isoceteth-20?
Isoceteth-20 is a synthetic polymer made by reacting fatty acids with ethylene oxide. It is commonly used in cosmetics and personal care products to help blend oil and water-based ingredients together.
Manufacturers use Isoceteth-20 as an emulsifier to stabilize product formulations, ensuring consistency and texture. While the ingredient is generally regarded as safe, it may trigger skin irritation in sensitive individuals. There is limited research on the long-term health effects of Isoceteth-20 as a standalone ingredient.
When you see Isoceteth-20 on a label, it typically indicates the product may have a smooth texture and stable formulation, but individuals with sensitive skin should test products before extensive use.
Commonly found in: shampoos, conditioners, lotions, creams, facial cleansers
What to watch
- Can cause skin irritation in sensitive individuals.
Isoceteth-20 is permitted in cosmetics as it complies with general safety standards.
Limited research specifically addresses Isoceteth-20, but studies indicate it is generally safe as part of a formulation.
Isoceteth-20 is generally considered vegan as it is synthesized chemically and not derived from animals.
Sources: Cosmetic Ingredient Review: Safety Assessment of Polyethylene Glycol
Scout's take
Isoceteth-20 is an emulsifier used to stabilize formulations and improve texture. It helps to enhance the absorption of other ingredients. It is generally considered safe for use in cosmetics.
The case against
There are minimal risks associated with isoceteth-20 in cosmetics.
from the analysis of The Ordinary - The Natural Moisturizing Factors + HA( / )The case for
It helps to improve product texture and enhance absorption.
from the analysis of The Ordinary - The Natural Moisturizing Factors + HA( / )More from Scout's analyses
PEG-derived surfactant; possible 1,4-dioxane contamination.
from the analysis of The Ordinary Niacinamide 10% + Zinc 1%All 2 products with Isoceteth-20
Where Isoceteth-20 shows up
- Skin Care 1 product
- Hair & Skin 1 product
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