Bronopol
Notable concerns
INCI · 2-Bromo-2-Nitropropane-1,3-DiolCAS 52-51-7
Also known as: Bronopol
Preservative
In plain language
A highly active antimicrobial agent used in rinse-off products, but controversial due to its potential to release formaldehyde and form nitrosamines.
When combined with amines (like TEA), it can form nitrosamines, which are suspected carcinogens.
Where it can be sold
Simplified regulatory status by market — for guidance, not compliance advice.
European UnionRestricted
Max 0.1%. Avoid formation of nitrosamines.