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STEARYL METHICONE.

Valuable / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING

Stearyl Methicone is a precision silicone wax celebrated for its emollient and film-forming capabilities. It significantly enhances skin softness and smoothness by creating a protective, non-occlusive barrier. This barrier efficiently reduces trans-epidermal water loss, promoting sustained hydration and fortifying the skin's lipid barrier against environmental aggressors.

Summary

skin conditioning emollient film forming

Science

Mechanism of Action

This ingredient functions as an emollient by adeptly filling microscopic gaps between dead skin cells, resulting in a perceptibly smoother and softer skin texture. Concurrently, it establishes a thin, resilient film on the dermal surface. This film is instrumental in mitigating trans-epidermal water loss (TEWL), thereby optimizing moisture retention and safeguarding the skin from external irritants, allergens, and microbial ingress. Furthermore, it actively contributes to maintaining the structural integrity of the skin's vital lipid barrier, acting as a conditioning agent for both skin and hair.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Stearyl methicone is an oil-soluble silicone wax that demonstrates broad compatibility with a diverse range of cosmetic raw materials and oils. It can be seamlessly integrated into oil-based formulation systems by heating and melting alongside other components, or introduced directly into the oil phase of emulsion systems. No specific optimal pH range for its stability has been identified.

Synergies

  • Plant-derived oils
  • Other silicones
  • Non-silicone emollients

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed Stearyl Methicone, along with other dimethicone and methicone polymers, as safe for use in cosmetic formulations. This conclusion was reaffirmed in 2021 following a re-evaluation of increased usage frequency and concentration. The panel considers significant dermal absorption improbable due to its large molecular weight. While related dimethicone polymers are reported at concentrations up to 85% for dermal contact, and conditioning agents often utilize up to 15% concentrations, a specific maximum concentration for Stearyl Methicone itself across all applications is not explicitly provided within the 'safe as used' conclusion.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Stearyl Methicone is a valuable silicone wax that enhances skin texture and hydration through its effective emollient and film-forming properties, supported by a strong safety profile and broad formulation compatibility.

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