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SODIUM LAURETH-3 CARBOXYLATE.

Insufficient Data CAS 33939-64-9 / CLEANSING, FOAMING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Sodium Laureth-3 Carboxylate is an anionic surfactant distinguished by its cleansing, emulsifying, and foaming capabilities. It facilitates gentle yet effective skin purification by lifting impurities without compromising natural hydration.

cleansing foaming surfactant

Science

This ingredient functions as an anionic surfactant, effectively lowering the surface tension between water and oils on the skin. This action allows it to encapsulate and suspend dirt, excess sebum, and environmental impurities, making them easily rinsable from the skin's surface.


Research

Medium confidence
Effective range N/A
Optimal

5%

Key findings

  1. 01 In a 5% detergent solution, Sodium Laureth Carboxylate (AEC), when co-formulated with Sodium Laureth Sulfate (SLES) and Lauryl Glucoside, contributed to a milder cleansing product. This formulation demonstrated no significant reduction in skin hydration (cutaneous capacitance) and resulted in less erythema or dryness compared to using SLES alone or traditional soap during skin soak tests.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 6 – 8
0 7 14

Stability

The foam stability of Sodium Laureth-X Carboxylate, a related compound, is reported to be consistent across a range of pH values, providing significant formulation flexibility. The ingredient itself is most compatible within a pH range of 6.0-8.0.

Synergies

  • When formulated with Sodium Laureth Sulfate (SLES) and Lauryl Glucoside, it contributes to a milder cleansing experience.

Safety

CIR Status
Not reviewed
Sensitization risk Low

While related surfactant compounds, such as Sodium Laureth Sulfate, have undergone Cosmetic Ingredient Review (CIR) assessment and been deemed safe for their intended use, Sodium Laureth-3 Carboxylate specifically lacks an individual CIR safety review.


Your Skin

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

Our Assessment

Insufficient Data

Sodium Laureth-3 Carboxylate is a promising, low-irritancy cleansing and foaming agent suitable for diverse skin types, but its overall safety profile warrants further assessment by regulatory bodies due to its 'not reviewed' CIR status.


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