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BIS-DIPHENYLETHYL DISILOXANE

78

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A phenyl-substituted disiloxane functioning as a silicone conditioning agent with distinctive phenyl-derived sensory properties, providing a unique balance of gloss, protection, and smooth skin feel in premium cosmetic formulations.

Bis-Diphenylethyl Disiloxane is an organosilicon compound with two phenyl-substituted siloxane units. The phenyl substituents give this siloxane a higher refractive index compared to standard dimethicones, providing a characteristic glossy, silky finish valued in premium hair serums and skin products. Phenyl-modified silicones are permitted in cosmetic products under EU Regulation 1223/2009 without specific restrictions beyond standard cosmetic safety. The disiloxane structure has limited skin penetration potential due to high molecular weight and hydrophobic nature. It is used at low concentrations to impart gloss, slip, and protection in leave-on hair and skin formulations.

Known concerns

  • Phenyl-substituted siloxane - generally safe
  • May enhance penetration of other ingredients
  • High molecular weight - negligible skin absorption

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.