Surfactant
Laureth-4
An emulsifier and solubilizer used in cosmetic formulas, with a higher comedogenic and irritation potential than some alternatives.
emulsifierformulation aid
✕ High Risk
Comedogenic Rating
5/5
Irritation Potential
4/5
What is it?
Laureth-4 is a non-ionic surfactant and emulsifier derived from lauryl alcohol, used to help blend ingredients but flagged in some formulation guidance for comedogenic and irritation potential.
Used in some creams and cleansers to help combine oil and water phases or disperse fragrance.
Key Benefits
Emulsifying function
Helps blend oil and water-based ingredients in a formula.
Suitable for
Main Actions
When it may be insufficient
It carries a higher comedogenic and irritation profile than many alternative emulsifiers — those with acne-prone or reactive skin may want to be cautious of products listing it prominently.
CategorySurfactants
Frequently Asked Questions
What does Laureth-4 do for skin?
Used in some creams and cleansers to help combine oil and water phases or disperse fragrance.
Who should use Laureth-4?
Laureth-4 is suitable for: use depends on formula concentration and overall product context.
Are there any warnings about Laureth-4?
It carries a higher comedogenic and irritation profile than many alternative emulsifiers — those with acne-prone or reactive skin may want to be cautious of products listing it prominently.
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