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Researched by Helena DeMaria-Williams

Formula IngredientSurfactant

Ceteth-20 Phosphate

INCI: Ceteth-20 Phosphate

Ceteth-20 Phosphate is a polyethylene glycol (PEG-20) cetyl ether phosphate ester that functions as a mild surfactant and cleansing agent. It helps to solubilise oils and other lipophilic ingredients in aqueous formulations, and is commonly used as an emulsifier in creams, serums, and sunscreens.

Category

Surfactant

Irritation Risk

Low

Skin Types

all skin types

What does this do in a formula?

cleansing, emulsification, solubilisation, formula stabilisation

Is Ceteth-20 Phosphate safe? Key considerations

Can Ceteth-20 Phosphate cause irritation?

Low Risk

Considered mild at typical cosmetic concentrations. No EU CosIng Annex II or III restrictions apply. As a PEG-based surfactant, it is gentler than many ionic surfactants.

Does Ceteth-20 Phosphate increase sun sensitivity?

No Risk

Ceteth-20 Phosphate does not increase photosensitivity.

Is Ceteth-20 Phosphate safe during pregnancy?

Safe

No documented safety concerns for topical cosmetic use during pregnancy. PEG-based surfactants are widely used in cosmetics with no reported reproductive concerns.

How does Ceteth-20 Phosphate work?

Ceteth-20 Phosphate is a polyethylene glycol (PEG-20) cetyl ether phosphate ester that functions as a mild surfactant and cleansing agent. It helps to solubilise oils and other lipophilic ingredients in aqueous formulations, and is commonly used as an emulsifier in creams, serums, and sunscreens.

Individuals with known sensitivity to PEG compounds should review the considerations above before use.

Which products contain Ceteth-20 Phosphate?

Shop products that contain Ceteth-20 Phosphate