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SODIUM LAURETH-5 CARBOXYLATE.

Valuable CAS 33939-64-9 / 38975-03-0 / CLEANSING, FOAMING, SURFACTANT - CLEANSING

Sodium Laureth-5 Carboxylate is a gentle anionic surfactant known for its effective cleansing capabilities and significant mildness. It excels at lifting impurities while generating a stable lather, making it a preferred choice for sensitive skin types.

Summary

Cleansing Foaming Surfactant

Science

Mechanism of Action

As an anionic ether carboxylate surfactant, Sodium Laureth-5 Carboxylate functions by reducing the surface tension between liquids or between liquids and solids. This property allows it to emulsify oils and water, effectively dissolving and removing dirt and grime from the skin's surface, while also creating a rich lather. Its chemical structure contributes to its inherently low irritation potential.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Clinical observations highlight its notable mildness and significantly lower irritation risk when compared to traditional sulfate-based surfactants, positioning it as an optimal choice for formulations targeting sensitive skin or requiring frequent application.
  2. 02 Studies suggest that co-formulation with other gentle surfactants, such as lauryl glucoside, can further amplify the mildness of cleansing systems, including those containing Sodium Laureth Sulfate (SLES).

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 5 – 8
0 7 14

Stability

The ingredient generates stable foam across a broad pH range (5.0 to 8.0) and under varying water hardness conditions. It also demonstrates good solubility at low temperatures. For optimal performance and longevity, storage below 30°C and protection from moisture are recommended.

Synergies

  • Exhibits excellent compatibility with a wide array of other surfactant types, including anionic, cationic, and amphoteric, enhancing its versatility in diverse formulations.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has not issued a dedicated safety assessment for Sodium Laureth-5 Carboxylate; however, related ethoxylated alcohol sulfates have been reviewed. EWG VERIFIED products may contain this ingredient, provided they adhere to specific use restrictions and warnings, primarily due to potential trace contamination risks associated with ethylene oxide and 1,4-dioxane.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A highly valuable mild anionic surfactant, Sodium Laureth-5 Carboxylate effectively cleanses while demonstrating low irritation potential, making it suitable for all skin types, especially sensitive.

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