PHENYL DIMETHICONE
1,1,3,3-Tetramethyl-1,3-diphenyldisiloxane; Poly(methyl phenyl siloxane)
PHENYL DIMETHICONE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.
Regulatory evidence by market
No rule for this ingredient has been imported for any of the 13 markets tracked here.
That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.
Chemical identity and properties

Phenyl Dimethicone
The Expert Panel for Cosmetic Ingredient Safety concluded that the following 7 linear phenyl-substituted methicone ingredients are safe in cosmetics in the present practices of use and concentration described in this safety assessment, with the exception that the available data are insufficient to make a determination of safety for these ingredients in products that may be incidentally inhaled. — Cosmetic Ingredient Review (CIR)
- IUPAC name
- methyl-oxo-phenylsilane
- Molecular formula
- C7H8OSi
- Molecular weight
- 136.22 g/mol
- Exact mass
- 136.034441409 Da
- Topological polar surface area
- 17.1 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
1 more reported name
External database identifiers
- EPA DTXSID:DTXSID40963382
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Inventory details for PHENYL DIMETHICONE
INCI name
PHENYL DIMETHICONE
Description
1,1,3,3-Tetramethyl-1,3-diphenyldisiloxane; Poly(methyl phenyl siloxane)
Record provenance
- Inventory reference
- 79605
- Imported identity
- PHENYL DIMETHICONE
- Source update
- 15/10/2010
Annex records for PHENYL DIMETHICONE
Key data
- ANTIFOAMING
- Suppressing foam during manufacturing or reducing the tendency of finished products to generate foam.
- SKIN CONDITIONING
- Maintaining the skin in good condition.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
How PHENYL DIMETHICONE appears in the CosIng inventory
The CosIng inventory lists PHENYL DIMETHICONE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.
PHENYL DIMETHICONE is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.
Frequently asked questions
Source note for PHENYL DIMETHICONE
This page reproduces the CosIng inventory entry for PHENYL DIMETHICONE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.
Use this inventory page to research PHENYL DIMETHICONE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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