beauty
industrial

Polybutene

CAS 9003-29-6

Also registered as 4 other CAS numbers

9037-04-1 · 11121-22-5 · 42612-15-7 · 52012-58-5

Concern score

Not assessed — no hazard data yet.

Polybutene in plain language

What it is: Also known as Beaulon P 5040 · Butene homopolymerise · Butene polymer · polymers Butene · Cosden OSH · Duraflex 8510
Show all 11 names
butene homopolymer · lube oil additive w/polyisobutylene · polybutene polymer · polybutylene · polybutylene or polybutene
What it does: Used in consumer products as a thickener, a fragrance ingredient and a conditioner.
Thickener
Fragrance
Conditioner
Depilatory
Is it a concern?: We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Polybutene appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Beauty
Industrial

USEPAcommercial use observedEPA CPDat observed this chemical in 3604 composition records across product categories including Construction and building materials, Home maintenance, Raw materials. EPA CPDat classifies this chemical for functional uses including Solubility enhancer, Viscosity modifier, Binder.
- EPA CPDat observed this chemical in 3604 composition records across product categories including Construction and building materials, Home maintenance, Raw materials. EPA CPDat classifies this chemical for functional uses including Solubility enhancer, Viscosity modifier, Binder.Source →

Expert safety opinions

No expert opinion on file for Polybutene. 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 Polybutene 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

EPA Chemical and Products Database
exposure · updated September 2017
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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

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed Polybutene in a product composition. These are source records, not Greenveil catalog products.

Source records

3,604

Named organisations

Construction and building materialsHome maintenanceRaw materialsVehicleIndustrial productsPesticides

Typical roles

ThickenerFragranceConditionerDepilatory

See products using Polybutene →

Catalog

Found in these products

Their ingredient lists include Polybutene; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 154 →Find products without it →