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PEG/PPG-116/66 COPOLYMER.

Valuable CAS 9003-11-6 (generic) / SOLVENT

PEG/PPG-116/66 Copolymer is a synthetic polymer designed to enhance the texture and stability of formulations. Primarily functioning as a versatile solvent and solubilizer, it ensures smooth product performance across various personal care applications.

Summary

Solvent Solubilizer Texture Enhancer Stabilizer

Science

Mechanism of Action

This synthetic polymer significantly contributes to formulation aesthetics by improving texture and stability, resulting in a smoother product experience. Its main action involves dissolving and solubilizing other substances, such as fragrances, due to its water-soluble polyethylene glycol (PEG) and polypropylene glycol (PPG) components, which are well-tolerated by the skin and offer diverse viscosity properties.

Research

Clinical Evidence

Medium confidence
Effective range 0.05–10%
Optimal

0.2-5%

Key findings

  1. 01 When incorporated into cooling personal care compositions, it effectively solubilizes ingredients, resulting in comparable average skin temperature drops to other established copolymer surfactants. Efficacy was observed within a range of 0.05-10%, with optimal performance noted between 0.2-5%.
  2. 02 In oral care, formulations containing PEG/PPG-116/66 Copolymer demonstrated significant efficacy in stain removal (100% more than regular toothpaste in 14 days) and teeth whitening, showing noticeable results within 3-5 days and clinically reversing years of yellowing.

Transparency

Dusting Analysis

Not commonly dusted

No data available regarding dusting behavior of this ingredient.

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

The copolymer maintains stability under typical storage conditions. To preserve its effectiveness, it should be protected from excessive heat and direct light. It is compatible with a broad range of cosmetic applications due to its neutral to slightly acidic pH suitability.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Moderate

Generally considered safe for topical use when adhered to established guidelines. However, individuals with sensitive skin should exercise caution and discontinue use if adverse reactions occur. While some consumer-level discussions raise concerns about its potential as an irritant allowing substance penetration (particularly in toothpaste contexts), formal scientific assessments for skin irritation are often 'No Data'. It lacks a harmonized classification for irritancy by EU GHS. Broader PEG/PPG substance hazard data are often incomplete or contextualized outside of skincare.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

PEG/PPG-116/66 Copolymer is a valuable formulation enhancer, primarily acting as an effective solvent and texture stabilizer, contributing to refined product performance and offering specific benefits in cooling compositions, though formal safety reviews for skin are pending.

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