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PHENYL TRIMETHICONE

Last update on Apr 17, 2026

Phenyl trimethicone is a silicon-based polymer with the molecular formula C₁₅H₃₂O₃Si₄. It helps improve the texture and spreadability of the formulations. It also helps to retain moisture within the hair and skin, giving it hydrated, glossy appearance while conditioning it.

CAS Number: 2116-84-9Chem/IUPAC Name: trimethyl-[phenyl-bis(trimethylsilyloxy)silyl]oxysilaneEINECS/ELINCS No: 218-320-6COSING REF No: 79701

Products with PHENYL TRIMETHICONE

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SF1550

by Momentive Performance Materials

INCI: PHENYL TRIMETHICONE

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Bentone Gel® PTM V

by Elementis

INCI: PHENYL TRIMETHICONE | DISTEARDIMONIUM HECTORITE | TRIETHYL CITRATE

Sustainable option
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PURESIL™ BSG-650DF

by Elkem Silicones

INCI: DIMETHICONE | DIMETHICONE/VINYL DIMETHICONE CROSSPOLYMER | PHENYL TRIMETHICONE | STEARYL DIMETHICONE

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What is PHENYL TRIMETHICONE used for?

Phenyl trimethicone is an excellent conditioning agent for both, hair as well as skin. Its application extends to a wide range of products such as foundation, CC cream, hair serum, blush, lip balm, facial powder, hair spray, lip gloss, conditioner, BB cream, makeup primer, brow liner, lip liner, mask, moisturizer, setting powder/spray, facial moisturizer/treatment, eye liner, hair color and bleaching, styling gel/lotion, lip plumper, baby sunscreen, around-eye cream, antiperspirant/deodorant, serums & essences, beard oil, hand cream, body wash/cleanser.

Hair care: It is dominantly used in haircare products owing to its unique properties. It enhances the hair texture i.e., makes hair silky, increases hair brilliance, and promotes a well-groomed appearance
Skin care: It forms a non-greasy and non-sticky film when spread over skin and prevents the loss of moisture from the surface

Origin

Silica is first converted to tetraethoxysilane, and the ethoxy groups are replaced with the desired chemical group by the Grignard reaction. The resulting organosilanes are hydrolyzable to organo-substituted silicic acids, called "silanols", which rapidly condense with each other to produce the silicon-oxygen-silicon framework of the silicone polymers. In these silicone structures, the organic radicals are firmly bonded to the silicon through a carbon-silicon linkage. Each silicon atom is linked to neighboring silicon atoms through an oxygen atom.

What does PHENYL TRIMETHICONE do in a formulation?

HAIR CONDITIONING|

SKIN CONDITIONING

Safety Profile

It is classified non-toxic. In 1986, the Expert Panel for Cosmetic Ingredient Safety (Panel) published a final report on the safety of Phenyl Trimethicone, with the conclusion that it is safe as a cosmetic ingredient in the practices of use and concentration described in the safety assessment.