# Isoprene

URL: https://app.greenveil.ai/ingredients/ingredient_cas_78_79_5
Categories: beauty, industrial
Functions: olefins/unsaturated
Identifier: 78-79-5

> Isoprene is used as olefins/unsaturated. Greenveil chemical-concern score: 100/100 — Critical concern driven by cmr.. Assessed from 6 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern driven by cmr.
- Confidence: 4
- Rationale: Isoprene (stabilized); (2-Methyl-1,3-butadiene) is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

## Regulatory status

- EU: banned — Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products. CMR: Carcinogenic Cat. 1B(),Mutagenic Cat. 2()
- US: commercial use observed — EPA CPDat observed this chemical in 12 composition records across product categories including Laboratory supplies, Road vehicles, Personal care. EPA CPDat classifies this chemical for functional uses including olefins/unsaturated.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._