- Type
- Antibacterial preservative
- How serious
- High severity
- Evidence
- Strong evidence
Why it is flagged
Consistently shown to interfere with thyroid hormone signalling in animal studies; removed from US consumer antiseptic washes.
Health topics it bears on
Sources
- Cosmetic Ingredient Hotlist Health Canada, 2025
- Triclosan - information sheet Government of Canada (Health Canada and Environment and Climate Change Canada), 2020
- Safety and Effectiveness of Consumer Antiseptics; Topical Antimicrobial Drug Products for Over-the-Counter Human Use U.S. Food and Drug Administration, 2016
- Commission Regulation (EU) No 358/2014 amending Annexes II and V to Regulation (EC) No 1223/2009 on cosmetic products European Commission, 2014
- The Effects of Triclosan on Puberty and Thyroid Hormones in Male Wistar Rats Toxicological Sciences (Society of Toxicology), 2009
Also listed as
5-chloro-2-(2,4-dichlorophenoxy)phenol