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Moumoujus

POLOXAMER 235.

Valuable CAS 9003-11-6 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Poloxamer 235 is a nonionic triblock copolymer, scientifically engineered to function as a versatile surfactant and emulsifier. It efficiently reduces surface tension, enabling the stable blending of disparate substances like oil and water, and effectively aids in gentle cleansing by lifting impurities.

Summary

emulsifying surfactant stabilizing cleansing conditioning

Science

Mechanism of Action

This ingredient's mechanism relies on its unique triblock copolymer structure: a central hydrophobic polyoxypropylene chain is flanked by two hydrophilic polyoxyethylene chains. This architecture allows it to reduce surface tension, stabilize emulsions by blending unmixable components, and facilitate the dissolution of otherwise insoluble ingredients, while also effectively lifting oil and dirt from skin and hair for easy removal.

Research

Clinical Evidence

High confidence
Effective range 0.5–10%
Optimal

N/A

Key findings

  1. 01 Successfully employed as an emulsifier and stabilizer in creams and lotions at concentrations ranging from 1% to 5%.
  2. 02 Functions effectively as a surfactant and cleansing agent in various cleansers at 1% to 10%.
  3. 03 Demonstrates utility as a conditioning agent in shampoos within a 0.5% to 5% range.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Poloxamer stability in solution is strongly influenced by temperature, concentration, and buffer type. Degradation pathways can lead to the formation of formic and acetic acids, resulting in a measurable pH drop. Oxidation also represents a stability concern, though many commercial formulations include antioxidants to mitigate this.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that Poloxamer 235, along with other poloxamers, is safe for cosmetic application. Based on its molecular weight and solubility, minimal skin penetration is anticipated. The CIR panel advises the industry to maintain stringent purification processes to keep 1,4-dioxane levels (a potential by-product) below established limits. Poloxamers are recognized by the FDA as indirect food additives in sanitizing solutions, and Poloxamer 235 specifically holds approval from both the FDA and the European Medicines Agency (EMA) for certain uses. The Scientific Committee on Consumer Safety (SCCS) also acknowledges Poloxamer 235 as an emulsifier/surfactant.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Poloxamer 235 is a valuable, well-tolerated ingredient that provides essential emulsifying, surfactant, and stabilizing benefits across a wide range of skincare and haircare formulations.

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