Does perfume expire?
Reviewed by Lucy Grant, co-owner and fragrance reviewer — 24 September 2026
Does perfume expire?
Perfume changes with age, but it has no fixed expiry date. US law requires none, and EU rules ask for a use-by date only on products that last 30 months or less.
- No US expiry rule. The FDA says no US law requires cosmetics to carry expiration dates.
- EU labels differ. Longer-lasting products usually show how long they stay safe after opening instead.
- Air changes the chemistry. Common fragrance chemicals such as linalool and limonene oxidize when exposed to air.
- Oxidized can mean allergenic. In a European study, 1.3% of 1,511 dermatitis patients reacted to oxidized linalool.
Log your bottles in Sentia to see which ones have sat untouched for 90 days or more.
The rules
What the label is and is not required to say
Whether a bottle carries a date depends on where it is sold, and the two big markets handle it in opposite ways.
United States
- No expiry date required
- No set shelf life
The FDA defines shelf life as how long a product looks and acts as expected and stays safe to use, and sets no length for it.
EU and UK
- Date if it lasts 30 months or less
- Period-after-opening mark if longer
The mark can be left off where durability after opening is not relevant, in the regulation's own words.
So a perfume with no date on it is not breaking a rule, and a number of months printed on the box is about the time after opening, not the time since it was made.
FDA, Shelf Life and Expiration Dating of Cosmetics (content current as of 25 February 2022) and Regulation (EC) No 1223/2009, Article 19, as retained in UK law. Both read 15 September 2026.
The chemistry
What air does to fragrance chemicals
The best-documented change is oxidation. Linalool and limonene, which one study describes as the fragrance chemicals most often used in scented products, react with oxygen when they are exposed to air. That process has a name, autoxidation, and it turns them into different compounds.
In a 2002 laboratory study, pure linalool left to oxidise for ten weeks fell to about 80% of its starting amount. Fresh, pure linalool did not sensitise the test animals. The oxidised linalool did.
A 2005 study patch-tested 1,511 people with dermatitis at six European clinics, and 1.3% of them reacted to oxidised linalool. Citing earlier work, the authors note that limonene, linalool and caryophyllene are not allergenic in themselves but readily form allergenic products once exposed to air.
Sköld et al., Contact Dermatitis (2002) and Matura et al., Contact Dermatitis (2005), from their published abstracts.
Are these chemicals in your perfume?
Often, and the ingredients line on the box is where to look. Creed’s for Aventus, for example, names both limonene and linalool; the Aventus guide shows the full line.
One limit to be clear about: the studies above tested single chemicals, not finished perfumes. They show what can happen to an ingredient over time. They do not tell you when a particular bottle has changed.
The honest answer
Why this page gives no number of years
You will find pages that give perfume a lifespan in years. None of the sources we could check gives such a figure, so this page does not either.
What the sources do support is simple:
- Keep the air out. The documented change needs oxygen, so keep the bottle closed.
- Keep it out of the heat. The FDA’s own example for cosmetics is not to leave them in a hot car.
- Trust your nose and your skin. If a bottle smells different from how you remember it, or starts to irritate, that tells you more than any date would.
Gone bad?
What gone bad means, and what it does not
People ask whether perfume goes bad the way milk does. It does not. No rule in the US or the EU sets a date after which a bottle must be thrown away, and nothing in the sources we read describes a perfume spoiling. What can happen is slower and quieter: air gets in, some of the fragrance chemicals oxidise, and the smell drifts away from what you bought.
That is the honest meaning of “gone bad” for a perfume. It has changed, not spoiled. The studies above show that change in single ingredients, linalool falling to about 80% after ten weeks in air, and they show that the oxidised forms can cause contact allergy where the fresh ones did not. They do not give a test you can run at home, and neither do we.
So a bottle that is ten, twenty or thirty years old is not unsafe because of its age. Open it, smell it against your memory of it, and try a little on skin. If it smells the way it did and your skin is fine, wear it. If it has turned sharp or flat, or it stings, that is the bottle telling you what no date could.
The best protection is wearing it
The simplest way to avoid an old bottle is to use it. The hard part is knowing which of yours have been waiting longest.
Sentia keeps count. Log what you wear, and it shows which bottles have gone 90 days or more without a single wear.
Questions
Still wondering
- How long does perfume last?
- There are two questions in that. On the shelf, there is no fixed number: US law sets none, and an EU label may show a period after opening instead. On skin, a 2021 engineering review gives top notes 15 to 30 minutes, heart notes three to four hours, and base notes more than four.
- Is it safe to use old perfume?
- No date makes it unsafe, but oxidised fragrance chemicals are a documented cause of contact allergy. If an old perfume irritates your skin, stop using it, and see a doctor if the reaction does not settle.
- Does perfume go bad?
- Not the way food does. A perfume has no legal expiry date in the US, and its documented change is chemical: fragrance chemicals such as linalool and limonene oxidise once air reaches them, and the oxidised forms can irritate skin. A bottle that smells as it did and sits well on your skin has not gone bad, whatever its age.
- How do I know if perfume has gone bad?
- There is no test we can point to. The studies on this page measured single chemicals in a lab, not bottles on a shelf, and none of them describes a sign to look for. What you have is your memory of the scent and your skin: if a bottle smells clearly different from how it did, or starts to irritate, treat it as changed, whether it is two years old or twenty.
- What does the period-after-opening symbol mean?
- Under the EU cosmetics regulation, that symbol is the 'period-after-opening' mark. The number beside it is the time, in months or years, the product is safe to use once opened. It replaces a use-by date on products expected to last more than 30 months.
Wondering how long a scent lasts once it is on you instead? That is a question about notes, and the perfume notes guide answers it tier by tier.