Ingredient profile
BUTYLENE/ETHYLENE/STYRENE
Raters disagreeCAS 100-42-5
At least one of our safety lists speaks to this ingredient. Also written as Butylene/Ethylene/Styrene.
Raters don't agree. Here's where each one stands
Safe
Greenlens Ingredient Scan
Independent
Greenlens Precautionary Screen
Independent
Greenlens Tolerance Screen
Independent
Caution
EU Harmonised Classification (CLP Annex VI)
Government
Concern
IARC Monographs
Government
ANSES Endocrine Disruptors
Government
Where each list lands
Funding shown- Concern
IARC Monographs
Government
Styrene, a residual monomer of some styrene-copolymer film-formers, is classified probably carcinogenic to humans. (IARC Monographs, Vol. 121)
- Concern
ANSES Endocrine Disruptors
Government
An ANSES endocrine-disruptor candidate (SNPE2), classified Repr. 2 and prohibited in cosmetics. (ANSES — French national strategy on endocrine disruptors (SNPE2))
- Caution
EU Harmonised Classification (CLP Annex VI)
Also screened — not on these lists
- Health Canada Ingredient Hotlist
- California Proposition 65
- US NTP Report on Carcinogens
- EU Microplastics Restriction
Notes
- ANSES-prohibited in cosmetics
- IARC probable carcinogen (Group 2A)
- EU harmonised CMR (cat. 2)
