Laureth-4
Laureth 4Laureth-4 SulfateLaureth-4 Ether Sulfate
Surfactant
Laureth-4 is a type of surfactant that helps mix oil and water together. It's often used in personal care products like shampoos and body washes to create a rich, foamy lather.
Moderate Concern
Source: EWG Skin Deep
Laureth-4 has been linked to skin irritation and allergic reactions in some individuals, but it is generally considered safe for use in low concentrations.
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[Research] Evaluating Your Routine: Hydroxy Acids
Cellular toxicity of surfactants used as herbicide additives.
Song HY, Kim YH, Seok SJ
2012
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Last updated: May 16, 2026