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.

Home › Ingredients › Sodium Laureth Sulfate

Sodium Laureth Sulfate

Also known as: SLES

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).

SurfactantVegan

BenefitNone 0 / 4

RiskModerate 1.8 / 4

Irritation i2.5 / 4

Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.

Sensitization i1 / 4

Risk of allergic contact dermatitis or immune-based reactions. Fragrance allergens, preservatives, botanicals, and some dyes may score here.

Systemic exposure i0.1 / 4

Whether it has meaningful potential to be absorbed into the body at levels that may matter biologically. Most cosmetic ingredients score low unless there is known concern or high 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

See how this matches your skin

Find out exactly what you put onto your skin. Scan any product before you buy. Free and independent — no brand is paying us. Available on Android and iOS.

QR code linking to the SpottyLabs app on Google Play

QR code linking to the SpottyLabs app on the App Store

Products with Sodium Laureth Sulfate

TRESemmé

Rich Moisture Shampoo (Vitamin E)

4.3/ 56/12/12

Lador

Moisture Balancing Shampoo

4.3/ 56/13/13

Kérastase

Genesis Bain Hydra-Fortifiant Shampoo

Browse all products →

Frequently asked questions

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.