- Type
- Preservative
- How serious
- Moderate severity
- Evidence
- Strong evidence
Why it is flagged
A leading cause of contact allergy; banned from leave-on cosmetics in the EU after a rapid rise in sensitisation.
Health topics it bears on
Sources
- Cosmetic Ingredient Hotlist Health Canada, 2025
- Commission Regulation (EU) 2016/1198 amending Annex V to Regulation (EC) No 1223/2009 on cosmetic products European Union (Official Journal of the European Union), 2016
- Opinion on Methylisothiazolinone (P94), Submission II (Sensitisation only) (SCCS/1521/13) Scientific Committee on Consumer Safety, 2014
Also listed as
mi, mit, kathon cg