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  • cleaning

Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated

CAS 68648-89-5

Concern score

Not assessed — no hazard data yet.

Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated in plain language

What it is

On cosmetic ingredient lists it appears as “Hydrogenated styrene/isoprene copolymer”.

Also known as Hydrogenated styrene/isoprene copolymer · Styrene/isoprene copolymer (28:72; 210000 mw) · Copolymer based on styrene and ethylene/propylene · Ellamera bi-thin 402 · Enhanced rubber segment (ERS) polymer · G-1702

Show all 12 names

G1702 · Styrene block polymer with isoprene, hydrogenated · Hydrogenated styrene-isoprene copolymer · Styrene polymerise avec le 2-methylbuta-1,3-diene, hydrogene · Styrene-ethylene-butylene-styrene (SEBS) linear polymer · butylene/ethylene/styrene copolymer

What it does

Used in cosmetics as a thickener.

  • Viscosity controlling
  • Thickener
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • EUCosIngActiveBenzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated
    • Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenatedSource →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 451 composition records across product categories including Vehicle, Personal care. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, styrene block copolymers, sbc (sbs, sebs, seps, sis)>styrene ethylene propylene styrenes (seps), Thickening agent.
    • EPA CPDat observed this chemical in 451 composition records across product categories including Vehicle, Personal care. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, styrene block copolymers, sbc (sbs, sebs, seps, sis)>styrene ethylene propylene styrenes (seps), Thickening agent.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as polymer.
    • openFDA substance registry classifies this ingredient as polymer.Source →

Expert safety opinions

No expert opinion on file for Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated. 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 Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated june 13, 2019

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    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.

Where it has been recorded

How often EPA CPDat has listed Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated in a product composition. These are source records, not Greenveil catalog products.

Source records

451

Named organisations

6

VehiclePersonal care

Typical roles

Viscosity controllingThickener
See products using Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated →

Catalog

Found in these products

Cosmetic and personal-care products that list Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated are shown first. Their ingredient lists include Benzene, ethenyl-, polymer with 2-methyl-1,3-butadiene, hydrogenated; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 57 →Find products without it →