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PEG/PPG-27/27 DIMETHICONE.

Valuable / SURFACTANT - EMULSIFYING

PEG/PPG-27/27 Dimethicone is a sophisticated silicone copolymer that expertly blends the sensory advantages of dimethicone with the formulation versatility of PEG/PPG groups. It primarily functions as a conditioning agent, emulsifier, and solubilizer, delivering a refined texture and superior skin feel.

Summary

Skin Conditioning Emollient Emulsifier Solubilizer Texture Enhancer Humectant

Science

Mechanism of Action

This ingredient creates a breathable, non-greasy film on the skin, contributing to improved barrier function and a silky-smooth tactile experience. The polyethylene glycol and polypropylene glycol units enhance its ability to emulsify and solubilize lipophilic compounds, ensuring uniform dispersion and stability within aqueous systems, while also offering mild humectant properties.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

PEG/PPG-27/27 Dimethicone serves as a multi-functional formulation aid primarily for textural enhancement and ingredient dispersion, not as a standalone active ingredient. Therefore, the concept of 'dusting' is not applicable to its function.

The Formula

Formulation

Solubility
Both
Optimal pH 3.5 – 8.5
0 7 14

Stability

Exhibits robust stability across a broad pH range (3.5-8.5) and is generally resistant to hydrolysis. Prolonged exposure to extreme temperatures (above 80°C) may compromise long-term stability in highly complex formulations.

Synergies

  • Enhances the spreadability and sensory profile when co-formulated with other emollients and silicones.
  • Improves the solubilization and dispersion of oil-soluble actives in aqueous systems.
  • Acts as a co-emulsifier to stabilize oil-in-water emulsions.

Conflicts

  • Generally well-tolerated across diverse cosmetic formulations with no widely reported significant incompatibilities.

Safety

Safety Profile

CIR Status
Safe as used
Pregnancy
Safe
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has assessed numerous PEG/PPG copolymers and silicones, generally concluding they are safe for use in cosmetic applications. No specific maximum concentration for safety has been definitively established; typical formulation concentrations range from 0.5% to 5% for optimal textural and emulsifying benefits. Trace impurities are diligently monitored during manufacturing.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

This multi-functional silicone copolymer offers significant formulation benefits, enhancing sensory attributes, improving ingredient dispersion, and contributing to skin conditioning with a low risk profile across various skin types.

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