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DISODIUM LANETH-5 SULFOSUCCINATE.

Valuable CAS 68890-92-6 / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, SURFACTANT - HYDROTROPE

Disodium Laneth-5 Sulfosuccinate is a mild anionic surfactant designed to gently cleanse skin and hair. It efficiently reduces surface tension, boosts foam volume, and acts as a hydrotrope to enhance the solubility of other ingredients in a formulation, all while helping to maintain skin moisture.

Summary

Cleansing Foam Boosting Surfactant Hydrotrope

Science

Mechanism of Action

This anionic surfactant operates by lowering the surface tension of water, which facilitates the emulsification and subsequent removal of dirt and impurities from the skin and hair. Its negative charge and comparatively large molecular size limit its penetration into the skin, contributing to its mild profile. As a foam booster, it improves the texture, volume, and stability of lather, aiding product spreadability. Additionally, it functions as a hydrotrope, increasing the water solubility of poorly soluble substances within a cosmetic formula, thereby enhancing overall formulation stability and performance. It is known to support skin moisture during cleansing processes.

Research

Clinical Evidence

Medium confidence
Effective range 0.06–10%
Optimal

N/A

Key findings

  1. 01 Clinical assessments on the closely related Disodium Laureth Sulfosuccinate indicate it is safe when formulated to be non-irritating across a range of concentrations. For leave-on products, concentrations from 0.06% to 2% were surveyed, and for rinse-off products, concentrations from 0.4% to 10% were deemed safe.
  2. 02 Studies presented conflicting results regarding skin irritation at higher concentrations; a 10% solution in citrate buffer was classified as a mild skin irritant in healthy subjects, yet aqueous solutions at 5% and 10% did not induce skin irritation in other studies involving both healthy and dermatitis patients. A trade mixture containing 1.68% did not cause clinically significant irritation or allergic contact dermatitis.

Transparency

Dusting Analysis

Not commonly dusted

Information regarding common 'dusting' practices or thresholds for this ingredient is not available in the provided research data.

The Formula

Formulation

Solubility
Water
Optimal pH 5.5 – 7.5
0 7 14

Stability

Disodium Laneth-5 Sulfosuccinate is highly water soluble and performs optimally within a neutral pH range of 5.5 to 7.5. It is prone to hydrolysis in highly acidic or alkaline environments, which may affect its stability over time. Formulators should be aware that cloudiness and crystallization can occur during storage, although these changes are typically reversible and do not compromise product quality.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
10%
Sensitization risk Low

The CIR Expert Panel concluded that Disodium Laureth Sulfosuccinate, a closely related alkyl PEG sulfosuccinate, and other alkyl PEG sulfosuccinates are safe for cosmetic use under current practices, provided they are formulated to be non-irritating. Surveyed concentrations reached up to 2% for leave-on products and 10% for rinse-off products. It is generally recognized as safe below 1% for prolonged skin contact. The U.S. FDA lists Disodium Laureth Sulfosuccinate for specific indirect food additive and GRAS regulations, indicating regulatory acceptance for certain uses. No specific SCCS opinion was identified in the provided sources.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Concentration-dependent, generally low when formulated correctly
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Disodium Laneth-5 Sulfosuccinate is a valuable, mild anionic surfactant offering effective cleansing, foam boosting, and hydrotropic benefits across all skin types, with established safety when formulated within recommended concentrations.

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