Sodium Laureth Sulfate (SLES) is a common cleansing agent and foaming ingredient found in many personal care products. It helps to create lather and effectively remove dirt and oil. SLES is derived from coconut or palm oil and is chemically modified to be milder than its close relative, Sodium Lauryl Sulfate (SLS).
NoneSurfactantVeganEvidence: High
BenefitNone 0 / 4
RiskModerate 1.8 / 4
Irritation
Sensitization
Systemic exposure
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
Can cause skin irritation, especially in higher concentrations or with prolonged contact
May lead to dryness or stripping of natural oils from skin and hair
Can cause eye irritation
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Is Sodium Laureth Sulfate the same as Sodium Lauryl Sulfate?
No, while similar, Sodium Laureth Sulfate (SLES) undergoes an ethoxylation process that makes it generally milder and less irritating than Sodium Lauryl Sulfate (SLS). This chemical modification reduces its potential to strip natural oils.
Is Sodium Laureth Sulfate safe to use?
Sodium Laureth Sulfate is considered safe for use in cosmetics and personal care products by regulatory bodies when used within established concentration limits. Concerns about its safety are often related to potential irritation rather than systemic toxicity.
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