Diphenylsiloxy Phenyl Trimethicone
High-refractive-index silicone giving a glow finish. Functional formulation ingredient with no standalone activity on the skin.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
About this ingredient
Diphenylsiloxy Phenyl Trimethicone is a phenyl-modified silicone with a high refractive index (1.55-1.58 vs 1.40 for regular dimethicone). Because of its optical properties the molecule reflects light in a particular way and gives a 'glow' finish on skin and hair. Mechanism. On skin it works as a functional emollient with an optical effect. The high refractive index is close to that of skin, which gives a natural non-plastic shine. Doesn't form a long-lasting occlusive film. In formulas it works as a solvent for oil-soluble actives, pigment carrier, sensory modifier. Where applied. Glow primers, foundations, lip and cheek products, 'highlighter' creams, hair products with a 'mirror shine' finish. In Spain – Charlotte Tilbury Hollywood Flawless Filter, NARS Pure Radiant, MAC Strobe Cream, professional color cosmetics. Evidence base. A functional component. Optical and sensory characteristics confirmed in standard formulation tests. No active skin pharmacology – a purely aesthetic component. Safety. CIR confirmed phenyl-modified trimethicones safe in cosmetic use. Hypoallergenic, non-comedogenic, non-irritating. Normal safety profile. Pregnancy and lactation – safe. Systemic absorption through intact skin is low. Best suited to: any skin type. Especially interesting in color cosmetics for a 'healthy glowing skin' effect, in mature-skin products, and in 'soft focus' positioned products.
Frequently asked questions
Is Diphenylsiloxy Phenyl Trimethicone safe during pregnancy?
Diphenylsiloxy Phenyl Trimethicone is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What is Diphenylsiloxy Phenyl Trimethicone and what does it do in cosmetics?
High-refractive-index silicone giving a glow finish.
What's the INCI name for Diphenylsiloxy Phenyl Trimethicone?
The INCI name is Diphenylsiloxy Phenyl Trimethicone.
See Diphenylsiloxy Phenyl Trimethicone in a product composition right on the store page
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Similar role in the formula
Other functional ingredients
Disodium Cetearyl Sulfosuccinate, Disodium Coco-Glucoside Citrate, Disodium Cocoamphodiacetate, Disodium Cocoyl Glutamate, Mica, Polyglyceryl-6 Octastearate, Sophorolipids, Buteth-3
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