Is Sodium Lauryl Sulfate safe to use?

Sodium Lauryl Sulfate is generally considered safe for use in rinse-off products at appropriate concentrations. However, its strong detergent properties can lead to irritation, especially in leave-on products or for individuals with sensitive skin.

Does Sodium Lauryl Sulfate cause cancer?

There is no scientific evidence to support claims that Sodium Lauryl Sulfate causes cancer. This is a common misconception, and regulatory bodies worldwide have deemed it safe for use in cosmetics.

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Sodium Lauryl Sulfate

Also known as: SLS

Sodium Lauryl Sulfate (SLS) is a strong anionic surfactant widely used for its excellent cleansing and foaming properties. It effectively removes oil and dirt, making it common in shampoos, body washes, and toothpastes. However, its strong detergent action can be irritating for some skin types.

Surfactant

BenefitMinimal 0.5 / 4

RiskHigh 2.5 / 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 i1.5 / 4

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

Systemic exposure i0.5 / 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.

What it helps with

Effective cleansing
Strong foaming agent

Things to watch

Can be irritating to skin and mucous membranes
May strip natural oils from skin and hair

Be careful combining with

None — Avoid using with other strong detergents or exfoliants to prevent excessive irritation and barrier disruption.

See how this matches your skin

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Products with Sodium Lauryl Sulfate

Garnier Fructis

Watermelon Hair Food Revitalizing Shampoo

4.3/ 56/10/11

Garnier Fructis

Hair Food Cocoa Butter Smoothing Shampoo

4.3/ 58/6/7

Lador

Moisture Balancing Shampoo

4.3/ 56/13/13

Head & Shoulders

Classic Clean Anti-Dandruff Shampoo & Conditioner 2-in-1

4.2/ 52/8/6

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Frequently asked questions

Is Sodium Lauryl Sulfate safe to use?: Sodium Lauryl Sulfate is generally considered safe for use in rinse-off products at appropriate concentrations. However, its strong detergent properties can lead to irritation, especially in leave-on products or for individuals with sensitive skin.
Does Sodium Lauryl Sulfate cause cancer?: There is no scientific evidence to support claims that Sodium Lauryl Sulfate causes cancer. This is a common misconception, and regulatory bodies worldwide have deemed it safe for use in cosmetics.