Paraformaldehyde
Notable concerns
INCI · ParaformaldehydeCAS 30525-89-4
Also known as: Polyoxymethylene
Preservative
In plain language
A white crystalline polymer of formaldehyde used as a preservative and disinfectant, releasing formaldehyde gas when heated.
Carries the exact same severe carcinogenic and sensitizing risks as pure formaldehyde.
Where it can be sold
Simplified regulatory status by market — for guidance, not compliance advice.
European UnionNot permitted
Banned in cosmetics along with formaldehyde.