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GREENVEIL

  • beauty

POLYSILICONE-38

CAS 2991823-77-7

Concern score

Not assessed — no hazard data yet.

POLYSILICONE-38 in plain language

What it does

Used in cosmetics as an emulsifier, a hair conditioner and a hair fixative.

  • Emulsifying
  • Hair conditioning
  • Hair fixing
  • Hair waving or straightening
  • Surfactant
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

What we know about this ingredient

Canonical ingredient record built from 1 public-source records.

Regulation

No restrictions found. POLYSILICONE-38 appears in these published regulatory listings.

  • EUCosIngActivePolysilicone-38 is a siloxane polymer that is made is several steps. First, Cyclotetrasiloxane is polymerized with Bis-Hydrogen Disiloxane, reacted to produce Bis-Hydrogen Dimethicone, which is reacted with PEG-48 diallyl ether and allyl glycidyl ether. Finally, the siloxane polymer is reacted with is capped with and Diisopropanolamine
    • Polysilicone-38 is a siloxane polymer that is made is several steps. First, Cyclotetrasiloxane is polymerized with Bis-Hydrogen Disiloxane, reacted to produce Bis-Hydrogen Dimethicone, which is reacted with PEG-48 diallyl ether and allyl glycidyl ether. Finally, the siloxane polymer is reacted with is capped with and DiisopropanolamineSource →

Expert safety opinions

No expert opinion on file for POLYSILICONE-38. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for POLYSILICONE-38 yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

1 data source

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.