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PEG-10/LAURYL DIMETHICONE CROSSPOLYMER.

Valuable CAS - / LIGHT STABILIZER, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING

PEG-10/LAURYL DIMETHICONE CROSSPOLYMER is a hybrid silicone polymer engineered to enhance cosmetic formulations. It functions as an effective emulsifier and film-former, improving product texture while delivering emollient benefits to the skin.

Summary

Emollient Emulsifying Film-forming Viscosity Controlling Absorbent Bulking Agent Stabilizing Agent Hair Conditioner

Science

Mechanism of Action

This ingredient forms a lightweight, protective film on the skin's surface, which significantly aids in locking in moisture and reinforcing the skin barrier. Its emollient properties contribute to a smooth skin feel and improved product spreadability. Furthermore, it acts as a robust emulsifier, crucial for stabilizing water-in-silicone (W/Si) and water-in-oil (W/O) emulsions, thereby enhancing formula integrity and potentially improving the delivery of active ingredients.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 A mixture containing PEG-10/LAURYL DIMETHICONE CROSSPOLYMER (at 100%) demonstrated a Primary Irritation Index (PPI) of 0.25 when applied under occlusion to rabbit skin, indicating it is not a primary irritant.
  2. 02 Clinical observations suggest that the closely related PEG-10 Dimethicone/Vinyl Dimethicone Crosspolymer is generally well-tolerated by most users, though individual instances of skin irritation or allergic reactions are possible.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

This ingredient effectively stabilizes water-in-silicone (W/Si) and water-in-oil (W/O) emulsions. Incorporating an electrolyte solution, such as 0.5% to 2% NaCl, into the aqueous phase can further enhance the long-term storage stability of the emulsion.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
0.7%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has deemed dimethicone crosspolymer ingredients, including PEG-10/LAURYL DIMETHICONE CROSSPOLYMER, safe for use in cosmetics at current concentrations and practices. However, it's important to note that PEG-containing ingredients may carry concerns regarding potential contamination with ethylene oxide and 1,4-dioxane. EWG indicates 'use restrictions (high)' for this ingredient. Despite these concerns, polyethylene glycols and their derivatives are broadly considered well-tolerated by the skin.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-10/LAURYL DIMETHICONE CROSSPOLYMER is a valuable multifunctional ingredient that enhances formulation stability and skin feel while supporting barrier function and moisture retention with a low irritation risk.

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