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SODIUM C10-13 ALKYL BENZENESULFONATE.

Optional CAS 68411-30-3 / CLEANSING, SURFACTANT - CLEANSING

An anionic surfactant, Sodium C10-13 Alkyl Benzenesulfonate efficiently reduces surface tension, enabling the effective mixing of oil and water. This property makes it a potent cleansing agent, lifting dirt and producing foam in various personal care and cleaning formulations.

Summary

Cleansing Surfactant

Science

Mechanism of Action

This ingredient functions as an anionic surfactant, primarily by decreasing the surface tension of liquids. This action facilitates the emulsification of oil and water, allowing it to dislodge dirt and impurities from skin, hair, or teeth surfaces, which can then be easily rinsed away. It is also recognized for its foam-generating capabilities.

Research

Clinical Evidence

Medium confidence
Effective range 0.05–50%
Optimal

N/A

Key findings

  1. 01 Observed some congestion and irritation.
  2. 02 Reported as not irritating to the skin or eyes in some assessments.
  3. 03 Indicated to be irritating.
  4. 04 Moderately irritating to skin and eyes, classified as a moderate irritant in rabbit skin studies under occlusive conditions.
  5. 05 Severely irritating, causing desquamation, necrosis, and hyperkeratinisation in rabbit skin, with erythema and oedema that were not fully reversible within 14 days.

Transparency

Dusting Analysis

Not commonly dusted

Information not provided in research data.

The Formula

Formulation

Solubility
Water
Optimal pH 7 – 10
0 7 14

Stability

No specific stability notes provided.

Conflicts

  • Acids (reacts to produce toxic and corrosive fumes including sulfur oxides)

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
5%
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel deemed this ingredient safe for use in cosmetics when restrictions are applied. Its irritant properties are concentration and pH-dependent, akin to other detergents. Formulators must ensure products containing this ingredient are precisely crafted to minimize potential irritancy. While exposure in diluted consumer products is considered safe, the undiluted substance can cause moderate to severe skin irritation and serious eye damage. The maximum concentration for rinse-off cosmetic products is 5%.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

SODIUM C10-13 ALKYL BENZENESULFONATE is a functional surfactant for cleansing, deemed safe with restrictions up to 5% in rinse-off products, but requires precise formulation to mitigate its medium irritancy potential.

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