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PEG/PPG-16/2 DIMETHICONE.

Valuable / SURFACTANT - EMULSIFYING

PEG/PPG-16/2 Dimethicone is a highly adaptable silicone-based polymer, functioning primarily as a surfactant and emulsifier to stabilize diverse cosmetic formulations. It also provides conditioning and film-forming properties, contributing to enhanced product aesthetics and skin/hair feel.

Summary

Emulsifying Agent Surfactant Film-Former Conditioning Agent Emollient Slip Modifier Solubilizing Agent Lubricating Agent Dispersing Agent Antistatic Agent

Science

Mechanism of Action

This ingredient functions by reducing the interfacial tension between immiscible phases, thereby promoting the stable formation of emulsions. On the skin, hair, and nails, it creates a subtle, protective film. Additionally, it offers conditioning, solubilizing, lubricating, dispersing, and antistatic benefits, and aids in the effective removal of oils and dirt in cleansing products.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Related Dimethicone Copolyol compounds demonstrated no primary skin irritation when tested at 40% in aqueous solution.
  2. 02 Undiluted Dimethicone Copolyol showed no indication of primary skin irritation or sensitization.
  3. 03 A study with 201 volunteers confirmed Dimethicone Copolyol to be non-irritating and non-sensitizing.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Generally stable in formulations. However, closely related ingredients within this chemical class may exhibit instability when exposed to extreme pH conditions.

Conflicts

  • May react with metal ions, leading to complex formation that could potentially compromise the stability or appearance of cosmetic products.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that PEG/PPG-16/2 Dimethicone, categorized under Alkoxy Polysiloxanes, is safe for use in cosmetics at current concentrations and practices. This determination was re-confirmed upon subsequent review. While no specific maximum concentration for this exact compound is designated, analogous Dimethicone Copolyol ingredients have been clinically assessed as non-irritating and non-sensitizing, even when applied undiluted or in high 40% aqueous solutions.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

A highly valuable and well-tolerated ingredient that significantly enhances formulation stability and offers multifaceted benefits for both skin and hair.

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