Is Triclosan in Cosmetics Harmful? EU Status and Current Scientific Evidence
Is triclosan harmful in cosmetics? Check its current EU regulatory status, SCCS opinions and reliable data on antibacterial action and health risks.
What is triclosan and what is it used for?
Triclosan (Triclosan, INCI name: Triclosan) is a synthetic biocide with broad-spectrum antibacterial and antifungal activity. For decades it was widely used in hygiene products: toothpastes, antibacterial soaps, mouthwashes, deodorants and hand creams. Its mechanism of action involves inhibiting the enzyme enoyl-ACP reductase, which is essential for fatty acid synthesis in bacterial cells.
Triclosan is an ingredient worth checking in the PurScore.pl ingredient encyclopaedia, especially if you regularly use oral hygiene or antibacterial products.
Current regulatory status in the EU
Triclosan's situation in the European Union has gone through several stages. Under Regulation (EC) No 1223/2009, triclosan was for a long time a permitted preservative (Annex V) in the following products and concentrations:
- Toothpastes — up to 0.3%
- Hand and shower soaps — up to 0.3%
- Deodorants (non-spray) — up to 0.2%
- Face powder and foundation — up to 0.2%
- Nails (strengtheners) — up to 0.2%
However, in 2014 the European Commission restricted the use of triclosan to just two categories: toothpastes (up to 0.3%) and nail cleaning products (up to 0.2%). All other uses were removed from Annex V. This decision was based on an SCCS opinion, which found insufficient safety justification for the broad use of triclosan in the absence of a proven clinical advantage over alternatives.
By browsing products in the PurScore.pl search engine, you can quickly check which toothpastes still contain triclosan.
Why is triclosan controversial?
The main areas of scientific concern revolve around four issues:
- Endocrine activity — Animal studies suggested that triclosan may disrupt thyroid hormone balance and show weak oestrogenic activity. The SCCS concluded, however, that at the concentrations used in cosmetics the risk to humans is minimal.
- Bacterial resistance — This is the most serious, well-documented concern. Widespread and non-selective use of triclosan may contribute to the selection of resistant bacteria, and studies have shown the potential for cross-resistance to certain antibiotics. It was precisely this argument that drove the FDA's decision in the USA to remove triclosan from antibacterial soaps in 2016.
- Environmental impact — Triclosan is detected in groundwater, bottom sediments and fish tissue. It is poorly biodegradable and can form toxic derivatives (chlorinated dioxins) under UV radiation.
- Skin penetration — Triclosan penetrates the skin and appears in urine. Biomonitoring studies confirm its widespread presence in the bodies of people in populations using products that contain it.
Is triclosan in toothpaste safe?
Toothpaste is the only cosmetic category in which triclosan is still permitted in the EU (up to 0.3%). Clinical studies confirm its effectiveness in reducing dental plaque and gingivitis — the advantage over triclosan-free toothpastes is real and documented. The SCCS concluded that the clinical benefit justifies its continued use in this form and dose.
Exposure through toothpaste is limited: the product contacts the mucous membrane for a short time and is spat out. This differs significantly from products that remain on the skin for long periods.
What replaces triclosan in antibacterial products?
After triclosan's use was restricted, manufacturers turned to alternative biocides: chlorhexidine, benzalkonium chloride, ethanol, PCMX (parachlorometaxylenol) and natural extracts with antibacterial properties (e.g. tea tree oil). Each of these substances has its own safety and efficacy profile.
It is worth remembering that for routine handwashing for hygiene purposes, ordinary soap without added biocides is equally effective at removing microorganisms — the physical mechanism of washing is the key factor here.
USA vs EU — different regulatory paths
In 2016 the FDA banned triclosan in antibacterial soaps, citing the lack of evidence for their advantage over ordinary soap and the risk of resistance. In Europe the ban is narrower — triclosan was dropped from the list of approved preservatives for most categories, but it remains legal in toothpastes. This is a good example of how the same ingredient can be regulated differently depending on the route of exposure and the benefit/risk balance. You can find more ingredient comparisons in the PurScore.pl rankings.
This article is informational in nature and does not constitute medical or dental advice. For questions about choosing a toothpaste or the effect of ingredients on oral health, consult a dentist or dermatologist.
Summary
Triclosan is not a banned ingredient in the EU — it is restricted. Its use in toothpastes has clinical justification and is considered safe by the SCCS. Its removal from most other products stemmed from a combination of factors: the lack of a proven clinical advantage, the risk of bacterial resistance and environmental concerns. An informed consumer can check the composition of products and make a conscious choice.
FAQ
Not entirely. Since 2014, triclosan has been permitted only in toothpastes (up to 0.3%) and nail products (up to 0.2%). It has been withdrawn from most other cosmetic categories.
Regulators concluded that there was insufficient evidence that triclosan soaps offer any advantage over ordinary soap, while at the same time posing a risk of bacterial resistance and raising environmental concerns.
At concentrations up to 0.3% and with typical use (spitting out, not swallowing), the SCCS considers triclosan in toothpastes safe. It has proven effectiveness in reducing plaque and gingivitis.
Triclosan is poorly biodegradable and is detected in water and in the tissues of aquatic organisms. Under UV light it can form chlorinated derivatives. This is one of the arguments for restricting its use.
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