The EU allergen list just tripled. What that means for your oils in 2026

Last updated: 12 September 2026

What actually changed

Since 2003, European cosmetic labels have had to name 26 fragrance substances when they appear above a certain level. Most people have seen the result without thinking about it: an ingredient list that ends with a run of words like linalool, limonene, citronellol, geraniol.

Commission Regulation (EU) 2023/1545 adds 56 more to that list. It amends Annex III of the Cosmetics Regulation, Regulation (EC) No 1223/2009, and it followed an opinion from the Scientific Committee on Consumer Safety (SCCS/1631/21) which identified further substances that cause contact allergy often enough to be worth naming.

The regulation was published in the Official Journal on 27 July 2023 and entered into force on 16 August 2023. What makes it relevant now is not the law itself but its transition period, which runs out next summer.

Why you will see 80 and 82 quoted

If you read three articles about this you will see three different totals. They are all describing the same list.

The original list has 26 entries. Twenty-four of them are individual chemicals. The other two are natural extracts — oak moss (Evernia prunastri) and tree moss (Evernia furfuracea). So:

• 24 individual substances + 56 new = 80 substances
• 26 entries + 56 new = 82 entries

Neither figure is wrong. It depends whether you are counting chemicals or counting lines in the annex. It is a small thing, but it is the sort of detail that tells you whether a page was written from the regulation or from another blog post.

Why this lands hardest on essential oils

Here is the part that matters for anyone working with oils rather than with synthetic fragrance: you cannot formulate these substances out.

Linalool is not an additive someone puts into lavender. Linalool is a large part of what lavender is. Limonene is most of what makes citrus peel smell like citrus peel. Geraniol, citronellol and citral are the reason rose, geranium and lemongrass smell the way they do. A synthetic fragrance house can reformulate to dodge a newly listed allergen. A distiller cannot, because the allergen and the aroma are the same molecule.

The practical consequence is that essential-oil-based cosmetics tend to carry longer allergen declarations than synthetic ones, and after July 2026 they will carry longer ones still. A short ingredient list has never meant a gentler product, and this change makes that clearer than ever.

The two dates, and the difference between them

There are two deadlines and they do different jobs.

31 July 2026 — placing on the market. From this point, a cosmetic product that does not carry the updated allergen declaration may not be placed on the EU market. Placing on the market happens once per unit: it is the moment a manufacturer or importer first supplies that unit to a distributor or a customer.

31 July 2028 — making available on the market. Stock that was legitimately placed on the market before the first deadline may continue to be sold through the chain until this date. After it, non-compliant product has to be gone.

The two-year gap is deliberate. It exists so that a shop is not left holding product it cannot legally sell the day the rule bites.

The thresholds did not change

An allergen has to be named once it is present above:

• 0.001% (10 ppm) in a product that stays on the skin — a balm, a face oil, a deodorant
• 0.01% (100 ppm) in a product that gets rinsed off — a shampoo, a shower gel

These are the same figures as before. Only the list of what gets counted grew.

They are also low enough to be worth sitting with. 0.001% is one part in a hundred thousand. In a 50 ml leave-on product that is half a milligram. Essential oils reach that with a single drop.

Does this apply to a bottle of neat oil?

Usually not directly, and this is where a lot of well-meaning writing goes wrong.

The Cosmetics Regulation governs cosmetic products — things presented for application to the body to clean, perfume, change the appearance of, protect, keep in good condition or correct body odour. A 15 ml bottle of lavender oil sold as an essential oil is typically not placed on the market as a cosmetic at all. It is placed on the market as a substance or mixture, and the labelling rules that apply to it come from a different law: the CLP Regulation, Regulation (EC) No 1272/2008, which is about hazard classification.

So the allergen change bites when:

• an oil or blend is presented as a cosmetic — a roll-on for the skin, a face oil, a body product;
• you or anyone else uses oils as ingredients in a cosmetic that is then placed on the market.

It does not rewrite the label on a bottle of distillate sold as a raw material. Both laws can apply to the same substance in different presentations, which is exactly why two bottles of the same oil can carry quite different labels.

What this means in practice

For most readers of this site — people who buy oils and use them at home — there is nothing to do. You will simply notice, over the next couple of years, that ingredient lists on European cosmetics get longer. That is the rule working, not a sign that products got worse.

Two things are worth knowing anyway:

A longer allergen list is information, not a warning. It tells you what is in there. If you have reacted to a product before, this change makes it easier to find out which substance was responsible, because more of them are now named.

If you make anything you sell or give away, this is your problem too. Soap at a Christmas market, balms for friends, a small brand — if it is a cosmetic placed on the market, the July 2026 date applies to you. This page is a summary written by someone who reads regulations, not by a regulatory consultant. Before relying on it commercially, read the text yourself or pay someone qualified to read it for you. The link is below.

Common questions

Does a bigger allergen list mean the products are more allergenic?

No. Nothing about the products changed. What changed is how many of their constituents have to be named on the label.

Are natural fragrances treated more leniently than synthetic ones?

No. The rules apply to substances, not to their origin. A molecule is treated the same whether it arrived by distillation or by synthesis, which is why naturally occurring linalool is declared exactly like the synthesised kind.

Is this the same in the United Kingdom?

Not automatically. The UK has its own cosmetics regime since leaving the EU, and EU amendments do not flow into it by default. If you sell into both, they have to be checked separately. I have not verified the current UK position and will not guess at it here.

What about Switzerland?

Switzerland is not in the EU and has its own rules, which often but not always track the EU. Same answer: it needs checking rather than assuming.

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The oils mentioned on this page

• Lavender
• Lemon
• Wild Orange

Each product page lists the botanical name, the size, the directions and the cautions, with a buy button for your country.

Read next

• How to read an essential oil label in Europe
• Diffusers and the air in your home: what the research actually says
• Can you cook with essential oils? What European labels actually allow