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  • beauty

PEG-400/1,4-BUTANEDIOL/SMDI copolymer

CAS 155801-96-0

Also registered as 1 other CAS number

1342797-89-0

Concern score

Not assessed — no hazard data yet.

PEG-400/1,4-BUTANEDIOL/SMDI copolymer in plain language

What it does

Used in cosmetics as an absorbent.

  • Absorbent
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

EPA DSSTox provides the canonical identifier, structure, and synonym profile for this chemical.

Regulation

No restrictions found. PEG-400/1,4-BUTANEDIOL/SMDI copolymer appears in these published regulatory listings.

  • EUCosIngActivePEG-400/1,4-Butanediol/SMDI Copolymer is a copolymer of PEG-400, 1,4-Butanediol and saturated bis-methylene diphenyldiisocyanate (SMDI) monomers
    • PEG-400/1,4-Butanediol/SMDI Copolymer is a copolymer of PEG-400, 1,4-Butanediol and saturated bis-methylene diphenyldiisocyanate (SMDI) monomersSource →

Expert safety opinions

No expert opinion on file for PEG-400/1,4-BUTANEDIOL/SMDI copolymer. 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 PEG-400/1,4-BUTANEDIOL/SMDI copolymer yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

2 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    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.

Catalog

Found in these products

Cosmetic and personal-care products that list PEG-400/1,4-BUTANEDIOL/SMDI copolymer are shown first. Their ingredient lists include PEG-400/1,4-BUTANEDIOL/SMDI copolymer; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 16 →Find products without it →