Ammonium Xylene-Sulfonate

What is Ammonium Xylene-Sulfonate?

Ammonium Xylene-Sulfonate is a synthetic ammonium salt of mixed xylene sulfonic acids, produced via sulfonation of xylene, a petroleum-derived hydrocarbon. This highly water-soluble ingredient falls under alkyl aryl sulfonates and finds primary use in rinse-off cosmetics like shampoos, shower gels, and facial washes. It functions by lowering surface tension to aid in removing oils and residues, boosting the solubility of water-insoluble components such as fragrances and emollients to ensure formula homogeneity and prevent cloudiness, and modifying flow properties to optimize thickness for even application and long-term stability. Its compatibility with other surfactants enhances overall performance in aqueous systems without compromising mildness.

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.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Improves solubility of fragrances and oils for clearer products.

Facilitates gentle cleansing by reducing surface tension.

Adjusts thickness for better texture and stability.

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 shampoos and body washes for consistent performance.
Those with rare sulfonate allergies.
Individuals seeking non-comedogenic cleansers.
People preferring only plant-based ingredients.
People wanting stable, non-separating liquid formulas.
Individuals sensitive to synthetic salts.

Safety Notes

  • Low hazard rating from environmental health assessments.
  • Deemed safe in cosmetic use by ingredient review experts.

Frequently Asked Questions about Ammonium Xylene-Sulfonate

What does Ammonium Xylene-Sulfonate do in products?

It cleanses by lowering surface tension, solubilizes oils, and controls thickness.

Is it suitable for everyday use?

Yes, it's mild and common in daily rinses like shampoos.

Does it pose skin safety risks?

Rated low hazard with evidence of good tolerability.