Flavouring and parfum on the label

The back of a biscuit pack says 'flavouring', a cream's ingredient list says 'parfum', and that is where it ends: two words, zero detail. Yet dozens of separate components can sit beneath that single word. In this article we explain why flavouring in food and fragrance in cosmetics are written so vaguely, what the natural versus synthetic distinction really tells you, which clues the label does offer, and what tools you have if you are sensitive or allergic.

Let us set the frame first: flavourings and fragrances are regulated components that cause no trouble for most people. The question is not whether they are dangerous but how the right to know what they are is met on the label. Vagueness creates uncertainty, and uncertainty is particularly frustrating for anyone with a known sensitivity.

The crowd behind one word

A strawberry taste or a floral scent does not come from a single substance; it is a balance of many volatile molecules working together. A commercial perfume composition may hold more than fifty and sometimes hundreds of separate components; a fruit flavouring is likewise a tuned ratio of dozens of molecules. Change the proportion of one substance in the blend and the scent or the taste can shift somewhere else entirely. That delicacy is what makes the formulas so valuable.

Regulations do not ask for these mixtures to be spelled out. Writing 'flavouring' or 'natural flavouring' in food and 'parfum' or 'fragrance' in cosmetics is enough. There are two reasons. The first is readability: adding dozens of lines would make the list unusable. The second is trade secrecy: scent and flavour compositions are among the most closely guarded recipes brands hold. That is how the secret formula legend around cola-style drinks stayed alive for so long.

What really separates natural flavouring from synthetic?

'Natural flavouring' says the components were obtained from a plant, animal or microbial source; plain 'flavouring' means they may have been produced in a laboratory. Here is the surprising bit: the molecule that reaches your glass or your plate is often identical in both cases. Vanillin is the best-known example; it can be extracted from a vanilla pod or made by synthesis, and chemically it is the same substance. So 'natural' is information about the source, not on its own proof of superiority or safety.

The real differences show up elsewhere: in cost, in how sustainable the source is, and in the trace-component profile of the product. A natural extract usually carries hundreds of trace components alongside the main molecule, while a synthetic molecule is purer. That does not make one better than the other; it makes their profiles different. Sometimes those traces add depth to a scent, sometimes they raise the number of allergens present.

The cosmetic exception: fragrance allergens that must be named

There is a limit to the vagueness in cosmetics. EU regulation requires the fragrance components with the heaviest record of contact allergy reports to be listed separately once they exceed a threshold. That threshold depends on whether the product stays on the skin: 0.001 percent in leave-on products (creams, lotions, perfume) and 0.01 percent in rinse-off products (shampoo, shower gel). For many years the rule covered around twenty-six components; a 2023 amendment took that list to roughly eighty, and the expanded version becomes mandatory for new products from summer 2026. Longer strings of allergen names on labels will therefore become ordinary in the years ahead.

If you see the following names towards the end of an ingredient list, this is why; they are components that must be pulled out from under the word 'parfum'. In other words, the label tells a careful reader more than you might expect.

• Limonene: a fresh note recalling citrus peel; very common in both essential oils and synthetic blends.
• Linalool: a lavender and bergamot note; its oxidised forms can be more irritating after long contact with air.
• Geraniol and citronellol: floral notes leaning towards rose and geranium.
• Coumarin: a sweet, faintly vanilla-like note reminiscent of tonka bean.
• Eugenol: a clove note, often used in spicy compositions.
• Citral: a sharp fresh note in the direction of lemongrass and lemon peel.
• Benzyl alcohol and benzyl salicylate: they act both as floral notes and as solvent or preservative.
• Cinnamal: a cinnamon note whose name appears often in contact allergy tables.

There is no such allergen-separation rule for flavouring on the food side. Mandatory allergen declaration in food is limited to a main list covering headings such as milk, eggs, gluten-containing cereals, tree nuts, soya, sesame, mustard, celery, fish, crustaceans, molluscs, peanuts, lupin and sulphur dioxide, and these are highlighted in bold or otherwise emphasised within the ingredient list.

Fragrance-free or unscented? The two words differ

These are the two most commonly confused phrases in cosmetics. Fragrance-free says no fragrance blend has been added to give the product a scent. Unscented says your nose does not pick up a scent, and to achieve that a masking component is sometimes added to cover the smell of the raw materials. So an unscented product may still contain fragrance components.

A frequent misconception is that essential oils are automatically safer. A good share of the allergen names listed above are components of natural oils in the first place; lavender oil contains linalool, orange oil contains limonene. Being natural does not mean being free of allergens.

What does flavouring actually do in food?

Flavourings make up a very small share of a product, which is why they appear towards the end of the ingredient list and contribute nothing meaningful to the energy value. Their job is to carry taste: to bring back a fruit note lost during heat treatment, to draw a familiar taste out of a cheap raw material, or to support the perception of sweetness in a product where sugar has been reduced.

The point that matters nutritionally is this: the presence of a flavouring does not change a product's sugar, salt or fat figures. A fruit drink saying 'naturally flavoured' can still be high in sugar. If you want to see the overall nutritional profile, the per hundred gram values and, where available, the Nutri-Score grade are a better place to look than the flavouring line.

What do you see on shelves in Türkiye?

The most common situation on shelves here is the distance between the bold fruit imagery on the front of a pack and the real fruit content in the ingredient list. A product calling itself fruit-containing must state the fruit percentage, and that figure is often lower than people assume; a product calling itself fruit flavoured may contain no fruit at all. The way to tell them apart is to read the ingredient list rather than the front.

On the cosmetics side, the INCI list is shared between local and imported products, so fragrance and allergen names are written the same way everywhere. A Turkish label only translates the usage and warning text; the ingredient list stays a mix of Latin and English. Learning the logic of reading ingredients once therefore makes your life permanently easier; we gathered the basic technique in our how to read ingredients guide.

If you are sensitive or allergic

What follows is practical habit rather than medical advice. If you have a diagnosed allergy or an ongoing skin condition, your doctor and pharmacist are the real guides, and diagnostic procedures such as patch testing belong to specialists.

• When looking for a scent-free product, prefer the wording 'fragrance-free'; 'unscented' does not carry the same assurance.
• If you have a known fragrance allergy, make it a habit to scan the final third of the ingredient list for allergen names.
• Trying a new cosmetic on a small area of the inner arm for a few days is a sensible precaution; we covered the detail in our sensitive skin care guide.
• When a reaction happens, note the product and the date; once you have a few records, finding the shared component gets easier.
• If you think you react to a particular flavouring in food, you can ask the producer; the contact details on the pack exist exactly for this.
• Spraying perfume onto clothing rather than directly onto skin is a simple way to reduce the contact area.

A thirty-second check while shopping

• In cosmetics look at the tail of the list: names such as limonene and linalool after the word parfum show that fragrance allergens above the threshold are present.
• In food notice where the flavouring sits in the list: near the end means the amount is small.
• Tell 'contains fruit' from 'fruit flavoured' and read the fruit percentage in the ingredient list.
• Put a brand's scented and fragrance-free versions side by side and compare the ingredient lists; the difference is precisely the fragrance blend.
• Baby and children's ranges usually offer a fragrance-free option, and starting there is sensible.
• If you can open the box, a heavy scent is a simple sign that the fragrance level in the formula is high.

Common mistakes

• Treating a product as automatically healthier because it says 'natural flavouring'.
• Assuming a product scented with essential oils is allergen-free; some of the most reported fragrance allergens are components of natural oils themselves.
• Taking 'unscented' and 'fragrance-free' to be synonyms.
• Blaming the active ingredient straight away when skin reacts; the source is often a fragrance component or another auxiliary ingredient.
• Expecting a flavouring to be listed with its own E-number; flavourings are not numbered under the additive category.
• Applying a heavily fragranced product to irritated or cracked skin.

Who benefits most from this?

Flavouring and fragrance do not concern everyone to the same degree. For the groups below, reading these lines on a label pays off noticeably more. This section is general information; any personal diagnosis or treatment decision needs your doctor.

• People with diagnosed contact allergy: because the allergen is named on the label, avoiding it is practically possible.
• People with eczema or an atopic tendency: tolerance for fragrance components usually drops when the skin barrier is under strain.
• Babies and small children: the ratio of skin surface to body weight is high, which is why plain formulas are preferred.
• People with migraine or scent sensitivity: the issue is not on the skin but in the density of scent in a room.
• Occupations with long cosmetic contact: repeated exposure is decisive for hairdressers, beauticians and cleaning staff.

To sum up

'Flavouring' and 'parfum' are closed boxes that regulations permit; they cause no trouble for most people, but for anyone with a sensitivity the rest of the label, especially the fragrance allergens that must be named, carries useful clues. To see a product's ingredients and any fragrance allergens one by one you can scan its label; you will find what fragrance is and how we assess it on our parfum ingredient page. The other ingredient groups worth checking beyond fragrance are gathered in our cosmetic label article.