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TEA-C12-13 ALKYL SULFATE.

Valuable CAS 223704-69-6 / CLEANSING, FOAMING, SURFACTANT - CLEANSING

TEA-C12-13 ALKYL SULFATE is an anionic surfactant essential for its dual role as a cleansing agent and an emulsifier in cosmetic formulations. It effectively reduces surface tension to facilitate the removal of impurities and ensures product consistency by stabilizing immiscible components.

Summary

Surfactant Emulsifying Cleansing

Science

Mechanism of Action

Operating primarily as a surfactant, TEA-C12-13 ALKYL SULFATE diminishes the surface tension of liquids, enabling the seamless integration of oil and water phases. This action is crucial for its function as a cleansing agent, where it encapsulates and lifts away dirt and excess oils from the skin and hair, allowing for effective rinsing. Concurrently, its emulsifying capabilities stabilize complex formulations, maintaining a uniform dispersion of ingredients within products like lotions and creams, thereby preserving their integrity and performance.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 7 – 9
0 7 14

Stability

This ingredient exhibits robust stability within alkaline, weak acid, and hard water conditions. Its aqueous solutions typically maintain a pH range of 7-9.

Conflicts

  • Strong acids, as they can induce hydrolysis.
  • Nitrosating environments, due to the Triethanolamine (TEA) component's potential to react with nitrous acid and form carcinogenic nitrosamines.
  • Children's products designed for prolonged direct skin contact, such as specific skincare items or shampoos.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
29%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that related ethoxylated alkyl sulfates are safe for use in cosmetics when properly formulated to be non-irritating, citing low acute oral toxicity and no skin sensitization. Trace amounts of 1,4-dioxane, a manufacturing byproduct, may be present, though the FDA considers these levels non-hazardous. In the EU, similar substances are approved under specific conditions following assessment by the SCCS. The maximum reported use concentration for related alkyl sulfates in cleansing products is up to 29%.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

TEA-C12-13 ALKYL SULFATE is a valuable ingredient, widely utilized for its effective cleansing and emulsifying properties, boasting an established safety profile when formulated correctly within recommended concentrations.

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