Surfactant
PEG-40 Stearate
An emulsifier and solubilizer that helps stabilize creams and lotions, supporting an even, consistent formula texture.
emulsifierformulation aid
✓ Safe
Comedogenic Rating
0/5
Irritation Potential
0/5
What is it?
PEG-40 Stearate is a non-ionic emulsifier and solubilizer derived from stearic acid, used to help combine oil and water phases and disperse oil-soluble ingredients evenly.
Used in creams, lotions, and toners to maintain a stable, uniform texture throughout the product's shelf life.
Key Benefits
Stable emulsification
Helps oil and water-based ingredients blend evenly.
Solubilizing support
Helps disperse oil-soluble actives or fragrance evenly through a formula.
Suitable for
Main Actions
When it may be insufficient
It has no direct skincare benefit of its own — its role is entirely about formula texture and stability.
CategorySurfactants
Frequently Asked Questions
What does PEG-40 Stearate do for skin?
Used in creams, lotions, and toners to maintain a stable, uniform texture throughout the product's shelf life.
Who should use PEG-40 Stearate?
PEG-40 Stearate is suitable for: all skin types — a formulation aid, not a direct active.
Are there any warnings about PEG-40 Stearate?
It has no direct skincare benefit of its own — its role is entirely about formula texture and stability.
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