Researched by Helena DeMaria-Williams
Formula IngredientEmulsifierPEG-150 Pentaerythrityl Tetrastearate
INCI: PEG-150 Pentaerythrityl Tetrastearate
PEG-150 Pentaerythrityl Tetrastearate is a polyethylene glycol ester derived from pentaerythritol and stearic acid, with approximately 150 ethylene oxide units. It functions as a water-soluble emulsifier, helping to blend oil and water phases in cosmetic formulations by reducing surface tension at the oil-water interface. It is widely used in rinse-off products such as cleansers, shampoos, baby washes, and body washes.
Category
Emulsifier
Irritation Risk
Low
Skin Types
all skin types, oily, dry, combination, sensitive, acne-prone
What does this do in a formula?
emulsification, oil-water blending, formulation stability, improved texture and spreadability
Is PEG-150 Pentaerythrityl Tetrastearate safe? Key considerations
Can PEG-150 Pentaerythrityl Tetrastearate cause irritation?
Low RiskNo EU CosIng Annex II (banned) or Annex III (restricted) classification. As a high-molecular-weight polymer used primarily in rinse-off products, dermal absorption is negligible and irritation potential is very low. Well tolerated across skin types in typical rinse-off formulations.
Does PEG-150 Pentaerythrityl Tetrastearate increase sun sensitivity?
No RiskPEG-150 Pentaerythrityl Tetrastearate is not a photosensitising ingredient. No increased sun sensitivity is associated with its use.
Is PEG-150 Pentaerythrityl Tetrastearate safe during pregnancy?
SafeNo pregnancy-specific safety concerns identified. As a large-molecular-weight polymer used primarily in rinse-off products with negligible systemic absorption, it is generally considered low risk. No reproductive or developmental concerns are noted in available cosmetic safety databases.
How does PEG-150 Pentaerythrityl Tetrastearate work?
PEG-150 Pentaerythrityl Tetrastearate is a polyethylene glycol ester derived from pentaerythritol and stearic acid, with approximately 150 ethylene oxide units. It functions as a water-soluble emulsifier, helping to blend oil and water phases in cosmetic formulations by reducing surface tension at the oil-water interface. It is widely used in rinse-off products such as cleansers, shampoos, baby washes, and body washes.
Individuals with known sensitivity to PEG (polyethylene glycol) derivatives should review the considerations above before use.
Which products contain PEG-150 Pentaerythrityl Tetrastearate?
Shop products that contain PEG-150 Pentaerythrityl Tetrastearate
