What is Laureth-4 used for in cosmetics?

Laureth-4 is primarily used as an emulsifier to blend oil and water ingredients, and as a surfactant to help products cleanse and foam.

Is Laureth-4 safe for sensitive skin?

Individuals with sensitive skin may experience irritation from Laureth-4, so patch testing is recommended.

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Laureth-4

Laureth-4 is a synthetic polymer derived from lauryl alcohol and ethylene oxide. It functions primarily as an emulsifier, helping to mix oil and water-based ingredients in cosmetic formulations. It can also act as a surfactant, aiding in cleansing and foaming.

NoneEmulsifierEvidence: Medium

BenefitNone 0 / 4

RiskModerate 1.5 / 4

Irritation

Sensitization

Rated by SpottyLabs' ingredient methodology, independent of brands.

Things to watch

Can cause skin irritation in some individuals
May contribute to sensitization over time

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Products with Laureth-4

Daily Cleansing Balm

Score 4 / 5

Coco Loco Shine Shampoo (For dull, lacklustre hair)

Score 3.6 / 5

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Frequently asked questions

What is Laureth-4 used for in cosmetics?: Laureth-4 is primarily used as an emulsifier to blend oil and water ingredients, and as a surfactant to help products cleanse and foam.
Is Laureth-4 safe for sensitive skin?: Individuals with sensitive skin may experience irritation from Laureth-4, so patch testing is recommended.