Sodium Xylene Sulfonate

What is Sodium Xylene Sulfonate?

Sodium Xylene Sulfonate is a synthetic anionic surfactant derived from xylene sulfonic acid, where sodium neutralizes the acid for stability in formulations. Chemically, it consists of a xylene ring with a sulfonate group attached, making it highly water-soluble. Primarily used in rinse-off personal care products such as shampoos, body washes, and facial cleansers, it serves dual roles. As a surfactant, it reduces surface tension between water and oils, enabling effective dirt and oil removal while supporting foam formation. As a hydrotrope, it enhances the solubility of less water-friendly components like essential oils or fragrances, preventing phase separation and ensuring product clarity and homogeneity. This functionality is key in maintaining stable, clear liquid emulsions without altering the primary active ingredients.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Hydrotrope
Improves solubility of poorly soluble ingredients (like fragrances) in water-based systems, helping maintain clarity and prevent separation or cloudiness.

Benefits

Enhances solubility of fragrances and oils in watery products for better stability.

Supports gentle cleansing and foaming in shampoos and washes.

Helps keep formulations clear and uniform without cloudiness.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Users of daily cleansers seeking stable, clear products.
Those with rare sulfonate sensitivities.
People with normal skin incorporating shampoos or body washes.
People experiencing irritation from similar hydrotropes.
Individuals preferring mild surfactants in rinse-off items.
Users of sensitive skin formulas without patch testing.

Safety Notes

  • Rated low concern by safety assessments for cosmetic use.
  • Generally mild in rinse-off applications per reviews.

Frequently Asked Questions about Sodium Xylene Sulfonate

What does Sodium Xylene Sulfonate do in products?

It acts as a surfactant for cleansing and a hydrotrope to dissolve hard-to-mix ingredients, keeping formulas stable and clear.

Is it safe for everyday use?

Safety reviews indicate low risk in rinse-off cosmetics at standard levels.

Does it clog pores?

Assigned a comedogenic rating of zero, unlikely to contribute to pore blockage.