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Moumoujus

SODIUM TOLUENESULFONATE.

Questionable CAS 12068-03-0 / 657-84-1 / SURFACTANT - CLEANSING, SURFACTANT - HYDROTROPE

Sodium Toluenesulfonate functions primarily as a hydrotrope and surfactant in aqueous solutions. It precisely enhances the solubility of compounds that are otherwise sparingly soluble, making it valuable for stabilizing formulations and integrating hydrophobic ingredients within cosmetic and personal care products.

Summary

surfactant hydrotrope solubilizer stabilizing agent

Science

Mechanism of Action

This compound functions by disrupting water's structure around hydrophobic molecules, effectively increasing their solubility. In skincare, it supports the consistent distribution and bioavailability of other active ingredients by ensuring their stable solubilization within the product matrix.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

As a formulation aid (hydrotrope, solubilizer), its presence is functional rather than indicative of an active ingredient 'dusting'. Its concentration is dictated by solubility needs, not by purported skin benefits.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Sodium Toluenesulfonate is a white, water-soluble solid known for its excellent solubility in water and stability under standard conditions.

Conflicts

  • strong oxidizing agents

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically reviewed Sodium Toluenesulfonate. General toxicological data for hydrotropes, as reported by the OECD, suggest a low order of acute toxicity, with no evidence of skin sensitization, genotoxicity, carcinogenicity, or developmental/fertility effects in animal studies. However, aggregated GHS classifications from company reports indicate warnings for skin sensitization in 44.9% of reports and serious eye irritation in 96.7% of reports. While considered to have low acute toxicity when handled properly, prolonged or repeated exposure may lead to mild irritation of the eyes, skin, and respiratory tract. Repeated skin contact may cause epidermal cracking, flaking, or drying, and there is some evidence suggesting it can cause inflammation of the skin in certain individuals.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Medium
Comedogenicity Unknown

Our Assessment

Verdict

Questionable

While effective as a hydrotrope and solubilizer for enhancing formulation stability, its moderate irritancy and potential for skin sensitization suggest careful consideration, especially for individuals with sensitive or dry skin types.

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