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PEG/PPG-8/14 DIMETHICONE.

Insufficient Data / SURFACTANT - EMULSIFYING

PEG/PPG-8/14 Dimethicone functions as a versatile silicone copolymer, enhancing product texture and facilitating smooth application. It forms a lightweight, non-occlusive film on the skin, effectively locking in moisture and promoting a soft, hydrated feel.

Summary

Emollient Emulsifying Skin Conditioning Surfactant

Science

Mechanism of Action

This ingredient operates as both a surfactant and an emulsifying agent, improving the spreadability and overall sensorial experience of formulations. On the skin, it establishes a breathable, protective barrier that effectively mitigates transepidermal water loss, thereby maintaining optimal hydration without impeding natural skin respiration. This leads to a notably smoother and softer skin surface.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

PEG/PPG Dimethicone demonstrates general stability within formulations. Its hydrophilic PEG moiety contributes to water and alcohol solubility, with solubility increasing proportionally to the number of alkoxy groups incorporated into the polymer structure.

Conflicts

  • May act as a defoaming agent, which could be a consideration in formulations where the generation or retention of foam is a desired characteristic.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel issued an 'insufficient data' announcement in 2014 for polyoxyalkylene siloxane copolymers, specifically seeking more detailed information on molecular weight ranges, impurities, dermal penetration, and potential for irritation and sensitization. However, the broader 'Dimethicone copolyol' category, which encompasses this ingredient, was deemed safe in 1982 and reaffirmed in 2005. Dimethicone itself is recognized by the US FDA as a safe skin protectant at low concentrations, largely due to its minimal skin absorption when properly formulated. While generally considered non-comedogenic and hypoallergenic, individuals with highly sensitive skin might experience localized irritation or breakouts, making preliminary patch testing advisable.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Insufficient Data

While PEG/PPG-8/14 Dimethicone offers valuable benefits in enhancing product texture and skin hydration, its classification as having 'insufficient data' by the CIR Expert Panel suggests that comprehensive safety data is still pending.

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