Food use
Nothing to weigh for this context yet.
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.
- beauty
- cleaning
- food
- industrial
2-Methyl-1,3-butadiene homopolymer
CAS 29717-43-9
Also registered as 12 other CAS numbers
29896-30-8 · 54577-96-7 · 556832-29-2 · 1073561-94-0 · 1424894-26-7 · 1579281-66-5 · 1644388-77-1 · 1983944-32-6 · 2100830-06-4 · 2126944-33-8 · 2260719-19-3 · 9003-31-0
Concern score
Not assessed — no hazard data yet.
2-Methyl-1,3-butadiene homopolymer in plain language
On cosmetic ingredient lists it appears as “Polyisoprene”.
Also known as Polyisoprene · 1,3-Butadiene, 2-methyl-, homopolymer · Betaprene H · Cis-1,4-Polyisoprene · H 07-119-04 · Homopolymer of 2-methyl-1,3-butadiene
Show all 16 names
Isoprene D · Isoprene homopolymer · Isoprene oligomer · Isoprene polymer · polymers Isoprene · natural polyisoprene (natural) rubber · natural polyisoprene rubber · natural rubber · polyisoprene rubber · rubber (natural and grs)
Used in cosmetics as a thickener.
- Viscosity controlling
- Thickener
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
Regulation
No restrictions found. 2-Methyl-1,3-butadiene homopolymer appears in these published regulatory listings.
- Found in consumer products
- Beauty
- Cleaning
- Food
- Industrial
EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 135 composition records across product categories including Construction and building materials, Home maintenance, Personal care. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Thickening agent, synthetic rubbers>polyisoprene rubbers (ir).
- EPA CPDat observed this chemical in 135 composition records across product categories including Construction and building materials, Home maintenance, Personal care. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Thickening agent, synthetic rubbers>polyisoprene rubbers (ir).Source →
Expert safety opinions
No expert opinion on file for 2-Methyl-1,3-butadiene homopolymer. 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 2-Methyl-1,3-butadiene homopolymer yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Fragrance avoidance
Nothing to weigh for this context yet.
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 2-Methyl-1,3-butadiene homopolymer in a product composition. These are source records, not Greenveil catalog products.
Source records
135
Named organisations
6
Construction and building materialsHome maintenancePersonal careCleaning products and household careIndustrial machineryMedical/dental
Typical roles
Viscosity controllingThickener
Found in these products
Cosmetic and personal-care products that list 2-Methyl-1,3-butadiene homopolymer are shown first. Their ingredient lists include 2-Methyl-1,3-butadiene homopolymer; each product's own rating depends on its whole formula, so it is shown on the product page, not here.
