No. You cannot buy melatonin over the counter in the UK. The NHS calls it a prescription-only medicine and says melatonin supplements “are not authorised for sale in the UK”. The route to melatonin is a prescription, from an NHS GP or specialist or from a private prescriber, dispensed by a pharmacy. Shops and supplement websites are not a route.
That is the short answer to “can you buy melatonin over the counter in the UK”. This is an evergreen explainer, not a news story. What follows sets out each route a UK adult might try, with the wording of the page that governs it. This desk read NHS Common questions about melatonin and About melatonin, the MHRA press release of 18 August 2025, the Circadin summary of product characteristics on the emc, and one ranking pharmacy blog, all on 23 September 2026.
Every route, checked
| Route | Can a UK adult get melatonin this way? | What the source says (read 23 September 2026) |
|---|---|---|
| Pharmacy counter, no prescription | No | NHS: “Melatonin is available on prescription only.” |
| Health food shop | No | NHS: supplements “are not authorised for sale in the UK and it’s a prescription-only medicine.” |
| Online supplement retailer | No, and advised against | NHS: “Ordering melatonin online is not recommended.” MHRA: a gummy sold online as a food supplement was pulled from sale once melatonin was found in it. |
| NHS GP or specialist prescription | Yes, for set conditions | NHS: mainly short-term sleep problems in people aged 55 and over; specialists sometimes prescribe longer term. |
| NHS prescription for jet lag | Not guaranteed | NHS: “Melatonin for jet lag may not be available for you on NHS prescription.” |
| Private or online prescriber | A prescription route | One ranking pharmacy blog carries a Circadin product card. The NHS wording does not limit “prescription” to the NHS. |
The table is the whole answer in six rows. The sections below explain the two that cause most of the confusion: why a shop cannot sell what a website abroad can, and what the jet-lag row actually says.
Why can’t a pharmacy sell melatonin over the counter?
Because of its legal category, not its safety profile. The MHRA’s press release of 18 August 2025 says melatonin “is authorised for use in the UK as a prescription-only medicine” for the short-term treatment of insomnia and jet lag in adults, and for insomnia in children and adolescents aged 6 to 17 with ADHD or delayed sleep wake phase disorder, where other sleep measures have not worked. The same release says products which fall under the definition of a medicine must hold a marketing authorisation to be legally sold and supplied, unless an exemption applies.
A pharmacist can dispense a prescription-only medicine against a prescription. What a pharmacist cannot do is hand one across the counter on request. That is the gap between the UK and countries where melatonin sits beside the vitamins. We set out the classification question in full in whether melatonin is a food supplement or a medicine in the UK.
Can I buy melatonin supplements at a health food shop?
No. The NHS page answers this exact question. In some countries, it says, melatonin is sold in health food shops or online as a complementary medicine. “However, these supplements are not authorised for sale in the UK and it’s a prescription-only medicine.”
The MHRA’s August 2025 release shows what happens when melatonin turns up in a product sold as a food supplement. Its testing of two batches of a children’s magnesium gummy found between 1.5 and 1.7mg of melatonin per gummy, with no melatonin on the label. The product had been sold online as a food supplement; the MHRA worked with online retailers to withdraw every listing, and said the detection meant the product must be regulated as a medicine. Our review of whether UK sleep gummies contain melatonin reads the labels on the shelf that remains.
Can I buy melatonin online in the UK?
Not as a supplement. The NHS says plainly: “Ordering melatonin online is not recommended.” An online pharmacy that supplies a licensed melatonin medicine after a prescription is a different thing from a website shipping supplement bottles, and the difference is the prescription. Travellers bringing their own supply home face a separate set of rules, which we covered in bringing melatonin into the UK from abroad.
Who can prescribe melatonin, and for what?
The NHS page About melatonin says it is mainly used for short-term sleep problems in people aged 55 and over, and that specialists sometimes prescribe it for longer-term problems in some children and adults. It lists the brand names Circadin, Adaflex, Ceyesto, Slenyto and Syncrodin, and the forms: standard tablets, slow-release tablets, capsules and a liquid.
For one of those brands the licence is specific. The Circadin 2 mg summary of product characteristics states that it is indicated as monotherapy “for the short-term treatment of primary insomnia characterised by poor quality of sleep in patients who are aged 55 or over”, at 2 mg once daily, one to two hours before bedtime and after food, for up to thirteen weeks. It adds that safety and efficacy in children aged 0 to 18 have not been established. We did not read the product documents for the other four brands, so their indications are not given here.
On course length, the NHS says short-term insomnia is usually treated for 1 to 4 weeks, and up to 13 weeks in some cases.
Does the NHS still say melatonin works for jet lag?
Yes, and this is where one ranking page departs from it. NHS Common questions about melatonin says melatonin “can be taken as a short-term treatment for jet lag in adults” and that there is some evidence it makes symptoms less severe. The usual dose is one 3mg tablet, which a doctor may raise to 6mg, taken at bedtime on arrival but not earlier than 8pm or later than 4am, for up to 5 nights in a row. It then adds: “Melatonin for jet lag may not be available for you on NHS prescription.”
The UK Meds blog Why is Melatonin banned in the UK?, marked “Updated at: October 02, 2024”, says melatonin “is no longer prescribed for jet lag” and “should not be used to help with the effects of jet lag”. Neither the NHS page nor the MHRA release says that; the MHRA’s list of authorised uses includes jet lag in adults. What the NHS says is narrower: an NHS prescription for jet lag may not be available. That is a statement about who pays, not about whether the use exists. We read nothing on whether any private prescriber issues melatonin for jet lag, and say nothing about it.
A note on the NHS page’s dates
Both NHS melatonin pages show “Page last reviewed: 13 February 2023” and “Next review due: 13 February 2026”. That review date has passed. It does not mean the guidance is wrong or has changed; the MHRA release of August 2025 describes the same prescription-only status. It means the page a reader lands on is overdue for its own scheduled check, which is worth knowing when a pharmacy blog quotes it back.
Frequently asked questions
Can you buy melatonin in UK pharmacies?
Not over the counter. The NHS page About melatonin, read on 23 September 2026, says melatonin is available on prescription only, so a pharmacy can supply it only against a prescription. The brands the NHS lists are Circadin, Adaflex, Ceyesto, Slenyto and Syncrodin.
Why is melatonin banned in the UK?
It is not banned. It is a prescription-only medicine. The MHRA’s press release of 18 August 2025 says melatonin is authorised for use in the UK in that category, for specific sleep disorders, and that products meeting the definition of a medicine need a marketing authorisation to be sold. What is missing is a lawful shop or supplement route, not the substance itself.
Is melatonin legal in the UK?
Yes, on prescription. Holding a prescribed melatonin medicine is ordinary. What the NHS page Common questions about melatonin rules out is the supplement route: it says melatonin supplements are not authorised for sale in the UK and that ordering melatonin online is not recommended. Legal to take on prescription is not the same thing as legal to sell on a shelf.
Can I get melatonin from my GP?
You can ask. The NHS says melatonin is mainly used for short-term sleep problems in people aged 55 and over, usually for 1 to 4 weeks and up to 13 weeks in some cases, and that specialists sometimes prescribe it longer term for some children and adults. For jet lag, the NHS says it may not be available on NHS prescription.
Food supplements are regulated as food in the UK and are not medicines; melatonin is the standing exception that looks like one on a foreign shelf and is a prescription-only medicine here. Nothing above is medical advice, and a GP or pharmacist is the right person for a question about your own sleep. The boring route, as usual, is the one with the paperwork.