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DIPHENYL DIMETHICONE.

Valuable CAS - / ANTIFOAMING, HAIR CONDITIONING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTANT - EMULSIFYING

Diphenyl Dimethicone is an advanced silicone polymer highly valued in skincare for its exceptional conditioning properties. It delivers a luxurious, non-greasy feel, significantly improving product spreadability and imparting a temporary smoothing effect on the skin's surface.

Summary

Emollient Skin conditioning Texture enhancer Film-forming Moisture barrier Smoothing agent Antifoaming Emulsifying Hair conditioning

Science

Mechanism of Action

This ingredient operates by forming a lightweight, vapor-permeable protective film on the skin. This barrier is crucial for diminishing trans-epidermal water loss, effectively sealing in moisture to enhance skin hydration. Concurrently, its unique rheological profile contributes to a silky-smooth skin feel and effortless product glide. It also offers a temporary cosmetic benefit by visually reducing the appearance of fine lines and pores, leading to a refined skin texture. When strategically combined with certain ingredients like aluminum starch octenylsuccinate, it can further contribute to mattifying and oil-absorbing effects in formulations.

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

Diphenyl Dimethicone demonstrates excellent stability within a neutral pH environment. Its high refractive index can enhance the luminosity of formulations, and it is recognized for its low tack characteristics.

Synergies

  • Aluminum starch octenylsuccinate (for mattifying and oil-absorbing product development)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
24.1%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Diphenyl Dimethicone and related silicone polymers are safe for use in cosmetic products, provided they are formulated to be non-irritating. However, the panel noted insufficient data to assess its safety for use in products applied via airbrush devices due to a lack of inhalation toxicity information. Diphenyl Dimethicone has been reported for use at concentrations up to 24.1% in lipsticks. The FDA has also proposed classifying Dimethicone, a broader category of silicones, as Category 1 (recognized as safe and effective) for use as a skin protectant at concentrations up to 30%.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Diphenyl Dimethicone is a valuable silicone for enhancing skin texture, providing moisture retention, and improving product aesthetics across a broad range of skincare and cosmetic formulations due to its excellent conditioning and film-forming properties.

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