Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

LAURYL PEG-9 POLYDIMETHYLSILOXYETHYL DIMETHICONE.

Valuable / HAIR CONDITIONING, SKIN CONDITIONING, SURFACTANT - CLEANSING

Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone is a sophisticated silicone polymer serving multiple functions in skincare formulations, primarily as a robust emulsifier and skin conditioning agent. It expertly binds water and oil phases, while also providing the skin with noticeable smoothness, hydration, and a protective hydrophobic barrier.

Summary

Emulsifying Skin Conditioning Hair Conditioning Surfactant/Cleansing Viscosity Controlling Emollient Ingredient Penetration Enhancer Pigment/Powder Dispersant Protective Barrier

Science

Mechanism of Action

This silicone polymer operates on multiple fronts: as an emulsifier, it ensures the stable blending of immiscible water and oil components in formulations. On the skin, it forms a protective yet breathable hydrophobic film, effectively minimizing transepidermal water loss and shielding against external aggressors. Its emollient properties soften and smooth the skin's surface, and it can facilitate the penetration of other active ingredients. Additionally, its surfactant nature allows it to effectively bind to impurities for gentle cleansing, and it excels as a dispersant for particulate ingredients like mineral UV filters and pigments, ensuring uniform application and enhancing product performance.

Research

Clinical Evidence

High confidence
Effective range 0.2–6%
Optimal

0.5%

Transparency

Dusting Analysis

Not commonly dusted

This ingredient functions primarily as an emulsifier, skin conditioner, and viscosity modifier. It is not typically 'dusted' or associated with dose-dependent irritation thresholds for active delivery, but rather its efficacy and stability within the formulation.

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Exhibits excellent compatibility with other silicones, organic oils, and esters. For enhanced storage stability, incorporating electrolytes (preferably 0.5-2% NaCl) into the water phase is recommended. Antifreeze agents such as propanediol and glycerin can improve freeze-thaw stability. Increasing the water proportion can positively influence system viscosity. While generally heat tolerant, temperatures exceeding 80°C should be avoided. Emulsification can be performed efficiently at room temperature with rapid stirring when all components are liquid.

Synergies

  • Other silicones
  • Organic oils
  • Esters
  • Sodium Chloride (for stability)
  • Propanediol (for antifreeze effect)
  • Glycerin (for antifreeze effect)

Conflicts

  • Heat above 80°C (may compromise stability)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
6%
Sensitization risk Low

Approved as safe for cosmetic use by both European Union and US FDA regulations. The Cosmetic Ingredient Review Expert Panel affirmed its safety in their 2015 report, reviewing concentrations between 0.2% and 6%. While studies generally indicate a low risk of irritation or allergic reactions for most users, a patch test is advisable for individuals with exceptionally sensitive skin.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Medium
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone is a highly valuable multi-functional ingredient, crucial for stable emulsion formulation, enhancing skin hydration and smoothness, and improving the performance of other actives and pigments.

Related

Similar Ingredients

Finding similar ingredients…