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SODIUM LAURETH-12 SULFATE.

Optional CAS 9004-82-4 / CLEANSING, FOAMING, SURFACTANT - CLEANSING

Sodium Laureth-12 Sulfate is a versatile anionic surfactant known for its effective cleansing and robust foaming capabilities. It functions by significantly reducing surface tension, enabling it to emulsify and remove oils and impurities from the skin.

Summary

Cleansing Foaming Surfactant

Science

Mechanism of Action

Operating as a member of the ether sulfate family, Sodium Laureth-12 Sulfate exerts its action by lowering the surface tension of water. This allows for the effective dispersion and emulsification of otherwise immiscible substances like oil and water, facilitating the suspension and removal of fat and soil particles from the skin's surface. It efficiently generates rich, stable lather, contributing to thorough cleansing.

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

For optimal stability, it is recommended to store Sodium Laureth-12 Sulfate in sealed containers at room temperature, avoiding both overheating and freezing. Should freezing occur, slow application of heat with agitation is advised to restore product homogeneity prior to use. A 10% solution typically exhibits a pH of 7.5.

Conflicts

  • Cationic surfactants
  • Metal ions
  • Oxidizing agents
  • Electrolytes (impacts viscosity)
  • Lauryl alcohol ethoxylates (impacts viscosity)
  • Amides (impacts viscosity)
  • Amphoterics (impacts viscosity)

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Moderate

The CIR Expert Panel considers Sodium Laureth Sulfate (SLES) safe for cosmetic use under current conditions, provided formulations are non-irritating. For Sodium Laureth-12 Sulfate specifically, strong evidence of human irritancy has been noted by CIR, alongside identified data gaps concerning specific use and concentration limits. Irritation to the eyes and skin can occur, with severity increasing directly with concentration. The FDA advises manufacturers to minimize the presence of 1,4-dioxane, a potential human carcinogen that can form during the ethoxylation process, though this is not a federal mandate.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

While an effective cleansing and foaming agent, its potential for medium irritancy and comedogenicity, alongside safety restrictions for non-irritating formulations, positions it as an optional ingredient requiring careful consideration for precise skincare applications.

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