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TALLOWAMIDOPROPYL HYDROXYSULTAINE.

Valuable CAS 70131-57-6 / ANTISTATIC, CLEANSING, HAIR CONDITIONING, SKIN CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, VISCOSITY CONTROLLING

TALLOWAMIDOPROPYL HYDROXYSULTAINE is an amphoteric surfactant primarily employed as a co-surfactant to enhance the mildness and performance of cleansing systems. It stabilizes micelle structures to minimize irritation while also offering beneficial skin conditioning properties.

Summary

Surfactant - Cleansing Surfactant - Foam Boosting Skin Conditioning Agent Hair Conditioning Agent Antistatic Agent Viscosity Increasing Agent (Aqueous)

Science

Mechanism of Action

As an amphoteric co-surfactant, TALLOWAMIDOPROPYL HYDROXYSULTAINE functions by reducing the charge density of micelles formed by anionic surfactants, leading to more stable micelle formations. This process effectively lowers the concentration of irritating surfactant monomers that could otherwise penetrate the stratum corneum and disrupt the skin's natural lipid and protein matrix, thereby significantly improving the mildness of surfactant systems. Beyond mildness, it enhances foaming properties and overall formulation stability, and acts as a skin conditioning agent, potentially forming a thin protective layer on the skin to mitigate moisture loss.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Hydroxysultaines exhibit stability across a broad pH range. For optimal shelf life, store in a dry, closed container at room temperature, away from strong oxidizing agents and highly acidic compounds.

Synergies

  • Anionic surfactants (enhances mildness and stability)

Conflicts

  • Cosmetic products where N-nitroso compounds can be formed
  • Strong oxidizing agents
  • Strong acids

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel concluded TALLOWAMIDOPROPYL HYDROXYSULTAINE is safe for cosmetic use under current practices, with the critical restriction that it must not be used in formulations where N-nitroso compounds may form. Manufacturers are advised to rigorously follow cGMPs to limit N-nitrosatable impurities. The U.S. FDA also considers highly processed tallow derivatives, from which this ingredient is sourced, not to pose a risk for infectious agent transmission. While no specific maximum concentration was reported for TALLOWAMIDOPROPYL HYDROXYSULTAINE, related alkyl sultaines like Cocamidopropyl Hydroxysultaine are reported at concentrations up to 11.5% in rinse-off products and 2.5% in leave-on products.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

TALLOWAMIDOPROPYL HYDROXYSULTAINE is a valuable amphoteric co-surfactant, enhancing the mildness and stability of cleansing formulations and offering skin conditioning benefits, making it suitable for a broad range of skin types when strict formulation guidelines regarding N-nitroso compounds are adhered to.

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