The European Union bans or restricts dozens of preservatives across food, cosmetics, and industrial products, often well before other countries take similar action. These bans span several regulatory frameworks, each covering a different category of products. Here’s what’s actually prohibited and why.
Titanium Dioxide in Food
Titanium dioxide (listed as E171 on ingredient labels) is one of the most high-profile preservative and additive bans in recent EU history. Used for decades to whiten and brighten foods like candies, chewing gum, sauces, and pastries, it was banned as a food additive in the EU in 2022. The European Food Safety Authority conducted a re-evaluation in 2021 that raised concerns about genotoxicity, meaning the substance could potentially damage DNA. The ban took full effect under Regulation (EU) 2022/63, and manufacturers were given a transition period to reformulate.
Titanium dioxide remains permitted in food products in the United States, Canada, and many other countries, which is why this ban frequently comes up in comparisons of EU versus US food safety standards. It’s also still allowed in pharmaceuticals and cosmetics within the EU itself, though regulators have raised questions about whether those uses should be reconsidered as well.
Preservatives Banned in EU Cosmetics
The EU’s cosmetic regulations are governed by Regulation (EC) No 1223/2009, which maintains a massive list of over 1,600 substances prohibited in cosmetic products (Annex II). Many of these are preservatives or antimicrobial agents that other markets still allow. The most notable bans and restrictions include:
Methylisothiazolinone (MI)
Methylisothiazolinone was once widely used in body lotions, shampoos, and liquid soaps to prevent bacterial growth. The EU banned it in all leave-on cosmetics like lotions, deodorants, and face creams after a surge in allergic contact dermatitis cases across Europe. Before that, mixtures of methylchloroisothiazolinone and methylisothiazolinone had already been banned in leave-on products. For rinse-off products like shampoos and body washes, the EU set a strict concentration limit of 15 parts per million. In the US, these ingredients remain permitted at higher concentrations in both product types.
Certain Parabens
Parabens are a family of preservatives used to prevent mold and bacteria in cosmetics. The EU hasn’t banned all parabens, but it has prohibited several specific types. Isopropylparaben, isobutylparaben, and phenylparaben are effectively banned in EU cosmetics because regulators determined there was insufficient safety data to calculate their risk, and manufacturers never provided the evidence needed to keep them authorized.
Denmark went further in 2011, banning propylparaben, isopropylparaben, butylparaben, and isobutylparaben in all personal care products intended for children under three years old, citing precautionary concerns about hormone-disrupting effects in a vulnerable population. The shorter-chain parabens (methylparaben and ethylparaben) remain permitted in the EU at regulated concentrations.
Formaldehyde and Formaldehyde Releasers
Formaldehyde itself is classified as a carcinogen and is banned as an intentional ingredient in EU cosmetics. Several preservatives that work by slowly releasing small amounts of formaldehyde have also been restricted or removed from use. These include ingredients commonly found in US products like DMDM hydantoin, imidazolidinyl urea, and diazolidinyl urea. If you’ve seen “formaldehyde-free” marketed as a feature on cosmetic products, this is the regulation driving that trend.
Food Preservatives Under Review or Withdrawn
The EU operates a rolling re-evaluation program for all food additives that were authorized before 2009. The European Food Safety Authority systematically reviews each one, and if manufacturers can’t provide adequate safety data when asked, the additive loses its authorization.
Stearyl tartrate (E 483), a food additive used as an emulsifier and preservative, went through this process. When EFSA issued a call for scientific data to support its continued use, no data was submitted at all. When no manufacturer defends an additive with evidence, the path toward withdrawal becomes straightforward.
This “use it or lose it” approach to safety data is a key difference between the EU and US systems. The EU places the burden on manufacturers to prove an additive is safe, while the US FDA generally allows additives to remain on the market unless there’s clear evidence of harm. That structural difference explains why the EU’s banned list is so much longer.
Potassium Bromate and Other Flour Treatments
Potassium bromate, used in the US as a flour improver and preservative to strengthen bread dough, has been banned in the EU since the 1990s due to evidence that it can cause kidney tumors in animals and is a possible human carcinogen. It remains legal in the United States, though California passed its own ban in 2023. The EU also prohibits azodicarbonamide, a dough conditioner that doubles as a bleaching agent, which is still permitted in American bread products.
Wood and Industrial Preservatives
The EU also regulates preservatives used outside of food and cosmetics through the Biocidal Products Regulation. Two notable bans stand out.
Creosote, the dark oily substance long used to treat wooden fences, decks, and outdoor structures, meets the EU’s exclusion criteria under biocidal regulations, meaning it’s broadly prohibited. The only exceptions are for utility poles (electricity and telecommunications) and railway sleepers, where no suitable alternatives exist yet. Even those uses were granted only a temporary renewal of up to seven years. Creosote is also restricted under the EU’s REACH chemical safety regulation. Consumer-grade creosote-treated wood products are essentially unavailable in Europe.
Cybutryne, an antifouling preservative used in boat hull paints to prevent marine organisms from attaching, was rejected by the European Commission in 2016. The EU’s action helped push a global ban that took effect in January 2023 through the International Maritime Organization, making cybutryne one of the few cases where an EU decision led directly to worldwide prohibition.
Why the EU Bans More Than Other Countries
The EU operates under what’s called the precautionary principle. If there’s reasonable scientific concern that a substance could harm human health, regulators can restrict it even before the evidence is conclusive. The US system generally requires stronger proof of harm before removing an approved substance from the market.
This philosophical difference produces real gaps. By some estimates, the EU has banned or restricted over 1,600 substances in cosmetics alone, compared to roughly a dozen in the US. In food, the disparity is smaller but still significant, with the EU prohibiting several colorings, preservatives, and processing aids that remain common in American grocery stores. The re-evaluation program EFSA runs means these lists continue to grow as older additives face modern safety standards for the first time.