Triclosan
Also: 5-chloro-2-(2,4-dichlorophenoxy)phenol · Microban · Irgasan DP300 · TCS
Avoid — an endocrine and thyroid disruptor associated with impaired fecundity; FDA banned it from consumer soaps in 2016.
Fertility & hormonal impact
Triclosan is an antimicrobial that disrupts endocrine signaling, most notably thyroid-hormone metabolism (it inhibits the sulfotransferase enzymes that regulate T3/T4). Normal thyroid function matters for regular ovulation and early pregnancy, so this is directly relevant to conception. Epidemiological work links higher urinary triclosan in women to impaired fecundity — a longer time-to-pregnancy — and laboratory and animal studies report estrogen-disrupting effects on the endometrium and uterus that could affect the receptivity needed for implantation. FDA banned triclosan from consumer antiseptic washes in 2016, citing endocrine and antimicrobial-resistance concerns.
Found in.
Two jurisdictions, two different verdicts.
Permitted only in toothpaste at maximum 0.3% (Regulation EC 1223/2009, Annex V, entry 25). Banned from all other cosmetic categories.
Banned in consumer antiseptic wash products and health care antiseptic rubs (2016 final rule, 21 CFR 310). Still permitted in toothpaste pending further data.
The receipts.
- [01]FDA — Antibacterial soaps final rule overviewwww.fda.gov/consumers/consumer-updates/antibacterial-soap-you-can-skip-it-use-plain-soap-and-water
- [02]Zorrilla et al. 2010 — Triclosan modulates estrogen-dependent responses (PubMed)pubmed.ncbi.nlm.nih.gov/20562219/
- [03]Zorrilla et al. 2009 — Effects of triclosan on puberty and thyroid hormones (PubMed)pubmed.ncbi.nlm.nih.gov/18940961/
Find Triclosan before it finds you.
Point the camera at any barcode. Pomenatal reads the ingredient list and tells you, in one tap, whether Triclosan is hiding in the products you use while trying to conceive.