What’s Changing and Why?

Until recently, EU law required cosmetic products to list 24 specific fragrance allergens on their packaging if they were present above very low levels. These rules were designed to help people who are sensitive to certain ingredients avoid products that might cause them problems. However, as our understanding of allergies has improved, it’s become clear that more substances can cause reactions than were previously listed.
To address this, the EU has adopted Regulation (EU) 2023/1545, which significantly expands the list of allergens that must be declared. Now, instead of just 24, there are over 80 substances that need to be mentioned on the label if their concentration exceeds certain thresholds. This move is all about transparency and giving consumers the information they need to make safer choices.
When Do the New Rules Apply?
There’s a generous transition period to help manufacturers and retailers adjust. Here’s how the timeline works:
From 31 July 2026, any new cosmetic products placed on the EU market must comply with the updated allergen labelling requirements. Products that were already on the market before this date can continue to be sold until 31 July 2028, but after that, all products must meet the new rules.
The regulation itself came into force on 16 August 2023, but these transition dates give everyone time to adapt.
What Does This Mean for Labels?
If you’re a consumer, you’ll notice longer ingredient lists on your favourite products. Brands will need to update their packaging to include any of the listed allergens if they’re present above 0.001% in leave-on products (like creams and lotions) or 0.01% in rinse-off products (like shampoos and body washes). For some substances, the regulation allows similar allergens to be grouped under one name, which helps keep ingredient lists from becoming unmanageably long. But that is the only concession. Inevitably INCI lists are going to get longer.
Most companies will be switching over as quickly as possible. But we are hearing that some natural companies are going to put off adding the new allergens until the last possible moment in 2028. The idea of being that nobody wants to be the first natural brand to add a load of allergens to their packs. As is often the case with these things, it is probably best to follow the crowd.
Why Is This Important?
Allergies to fragrances and other ingredients in cosmetics are not uncommon, and repeated exposure can sometimes lead to new sensitivities. By giving clearer information, the new rules help people with allergies avoid ingredients that could cause them discomfort or worse. For manufacturers, it means reviewing formulations, updating safety reports, and making sure every product on the shelf is fully compliant.
In Summary
If you’re a consumer, these changes mean more transparency and a better chance of avoiding ingredients that might cause you trouble. If you’re in the industry, now’s the time to check your formulations and labels to ensure you’re ready for the new rules. Either way, the end result should be safer, more informed choices for everyone.
Implementation dates to remember: 31 July 2026: New products must comply 31 July 2028: All products must comply, including those already on the market
The Expanded List of Allergens
Current Allergens
Amyl cinnamal (122-40-7)
Benzyl alcohol (100-51-6)
Cinnamyl alcohol (104-54-1)
Citral (5392-40-5)
Eugenol (97-53-0)
Hydroxycitronellal (107-75-5)
Isoeugenol (97-54-1)
Amylcinnamyl alcohol (101-85-9)
Benzyl salicylate (118-58-1)
Cinnamal (104-55-2)
Coumarin (91-64-5)
Geraniol (106-24-1)
Hydroxyisohexyl 3-cyclohexene carboxaldehyde (31906-04-4)
Anisyl alcohol (105-13-5)
Benzyl cinnamate (103-41-3)
Farnesol (4602-84-0)
Butylphenyl methylpropional (80-54-6)
Linalool (78-70-6)
Benzyl benzoate (120-51-4)
Citronellol (106-22-9)
Hexyl cinnamal (101-86-0)
Limonene (5989-27-5)
Methyl 2-octynoate (111-12-6)
Alpha-isomethyl ionone (127-51-5)
Evernia prunastri (oakmoss) extract (90028-68-5)
Evernia furfuracea (treemoss) extract (90028-67-4)
New Allergens
Acetyl cedrene (32388-55-9)
Alpha-terpinene (99-86-5)
Anethole (104-46-1)
Anise alcohol (105-13-5)
Benzaldehyde (100-52-7)
Benzyl isoeugenol (120-11-6)
Beta-caryophyllene (87-44-5)
Camphor (76-22-2)
Carvone (99-49-0)
Caryophyllene oxide (1139-30-6)
Cedrene (469-61-4)
Cedryl acetate (77-54-3)
Cedryl methyl ether (19870-74-7)
Citronellyl acetate (150-50-5)
Cyclamen aldehyde (103-95-7)
Damascenone (23696-85-7)
Dimethyl phenethyl acetate (151-05-3)
Ethyl linalool (10339-55-6)
Furaneol (3658-77-3)
Gamma-decalactone (706-14-9)
Gamma-undecalactone (104-67-6)
Geranyl acetate (105-87-3)
Guaiacol (90-05-1)
Hexadecanolactone (822-23-1)
Hexamethylindanopyran (1222-05-5)
Hydroxycitronellal methyl ether (731-27-1)
Ionone (127-41-3)
Isoamyl alcohol (123-51-3)
Isobutyl cinnamate (122-67-8)
Isobutyl methyl ketone (108-10-1)
Isopropyl myristate (110-27-0)
Linalyl acetate (115-95-7)
Menthol (1490-04-6)
Methoxyhydratropaldehyde (5462-06-6)
Methyl anthranilate (134-20-3)
Methyl dihydrojasmonate (24851-98-7)
Methyl eugenol (93-15-2)
Methyl heptine carbonate (111-12-6)
Methyl heptyne carbonate (111-12-6)
Methyl salicylate (119-36-8)
Myrcene (123-35-3)
Myristicin (607-91-0)
Nerol (106-25-2)
Neryl acetate (141-12-8)
Pentadecanolide (106-02-5)
Phenethyl alcohol (60-12-8)
Phenylacetaldehyde (122-78-1)
Phenylpropyl alcohol (122-97-4)
Phenylpropanol (122-97-4)
Pinene (80-56-8)
Pinus mugo extract (90082-35-0)
Pinus pumila extract (91745-89-0)
Rose ketones (56973-85-4)
Salicylaldehyde (90-02-8)
Sandalore (65405-72-9)
Sclareol (515-03-7)
Terpinolene (586-62-9)
Tetramethyl acetyloctahydronaphthalenes (54464-57-2)
Trimethylbenzenepropanol (103694-68-4)
Trimethylcyclopentenyl methylisopentenol (1335-46-2)
Vanillin (121-33-5)
Myroxylon pereirae oil (8007-00-9)
Cananga odorata oil (8006-81-3)
Cedrus atlantica bark oil (92201-55-3)
Cinnamomum cassia leaf oil (8007-80-5)
Cinnamomum zeylanicum bark oil (8015-91-6)
Citrus aurantium bergamia peel oil (8007-75-8)
Citrus aurantium flower oil (8023-85-6)
Citrus aurantium peel oil (8008-57-9)
Citrus limon peel oil (8008-56-8)
Cymbopogon flexuosus oil (8007-02-1)
Eucalyptus globulus leaf oil (8000-48-4)
Eugenia caryophyllus leaf oil (8000-34-8)
Jasminum grandiflorum flower extract (84776-64-7)
Juniperus virginiana oil (8000-27-9)
Laurus nobilis leaf oil (8007-48-5)
Lavandula angustifolia oil (8000-28-0)
Lippia citriodora absolute (8024-12-2)
Mentha piperita oil (8006-90-4)
Mentha viridis leaf oil (8008-79-5)
Narcissus poeticus extract (8023-08-7)
Pelargonium graveolens flower oil (8000-46-2)
Pogostemon cablin oil (8014-09-3)
Rosa damascena flower oil (90106-38-0)
Santalum album oil (8006-87-9)
References
Thanks Colin, very useful and informative as usual 👏
Thank you Rose.