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POLOXAMER 105 BENZOATE.

Valuable CAS - / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Poloxamer 105 Benzoate is a versatile cosmetic ingredient primarily functioning as a surfactant and emulsifier. It efficiently reduces surface tension, enabling the stable mixing of typically immiscible liquids like oil and water, and enhances the solubility of challenging ingredients within formulations.

Summary

Surfactant Emulsifying Solubilizing Cleansing

Science

Mechanism of Action

This ingredient operates by lowering the surface tension at the interface between liquid phases. This action facilitates the uniform blending of oil and water components, thereby forming and stabilizing emulsions and improving the overall consistency of a product. Additionally, its solubilizing properties aid in the dispersion of ingredients that are otherwise difficult to incorporate into a solvent, while also boosting cleansing capabilities.

Research

Clinical Evidence

Low confidence
Effective range 0.005–20%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Essential for forming and maintaining the stability of emulsions within a formulation, preventing separation of phases.

Conflicts

  • Potential impurities such as ethylene oxide, propylene oxide, and 1,4-dioxane must be rigorously managed through appropriate purification during manufacturing to ensure product safety and integrity.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
20%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Poloxamer 105 Benzoate, along with other poloxamers, is safe for use in cosmetics, with typical concentrations ranging from 0.005% to 20%. While identified as a minimal ocular irritant, it has consistently shown no dermal irritation or sensitization in animal studies, with human clinical tests confirming negative results. Its molecular weight and solubility suggest minimal and slow skin penetration. Manufacturers are urged to uphold stringent purification procedures to keep trace impurities like ethylene oxide, propylene oxide, and 1,4-dioxane below established limits. The broader poloxamer family is generally accepted by the FDA for various applications, including incidental food contact and OTC skin wound cleansers, reinforcing its robust safety profile.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Poloxamer 105 Benzoate is a valuable, well-tolerated ingredient, safely utilized across a broad spectrum of skincare and cosmetic formulations for its essential emulsifying, solubilizing, and cleansing properties, compatible with all skin types.

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