Nasal Tanning Spray: What Is in It and the Risks

What is actually in a nasal tanning spray?

The ingredient sellers name is Melanotan II. It is a lab-made copy of a natural hormone signal that tells skin cells to make more pigment. In a spray, it is meant to be absorbed through the lining of the nose. No health agency has approved it for tanning, so there is no official product to check a bottle against.

Because the products are unregulated, what is in the bottle is not guaranteed. The Australian regulator says buyers cannot be sure of the ingredients, strength or quality of these products. A buyer has no reliable way to confirm the contents.

Sources: Australia TGA safety advisory published 17 August 2026, confirmed on 23 October 2026 through an Internet Archive copy dated 11 October 2026 because the live TGA page could not be fetched directly: Melanotan II is prescription only, sits on no approved register, and supplying it to tan is illegal in any form. Testing of five seized nasal spray bottles labelled the same strength found 22 to 54 mg of Melanotan II each.; UK MHRA freedom of information reply 24/274, dated 17 April 2024 (PDF read 23 October 2026): injections and pens count as medicines, a nasal spray counts as one only when sold with claims to treat or prevent disease, 16 suspected reports were logged from 2012 to 2022, and selling or advertising an unauthorised medicine is not allowed.

How four regulators treat melanotan nasal sprays

We read the primary documents from each regulator and lined them up. No single outside page we found does this, so here is our own side-by-side, with the status, what the regulator put in writing, the date and the link.

Two points stand out. Nowhere here is the tanning use approved. And the rules do not match: a spray treated loosely in one country is handled as an illegal supply in another, so legality in one place tells a buyer nothing about the next.

Sources: United States FDA, via the US Department of Justice press release (read 23 October 2026 through an Internet Archive copy, as the live page returned no text): Melanotan II is not approved by the FDA. The FDA warned a seller in August 2007 that it could not be sold without approval, and in 2015 the former owner of that company pleaded guilty to federal charges and admitted selling the unapproved drug.; UK MHRA freedom of information reply 24/274, dated 17 April 2024 (PDF read 23 October 2026): injections and pens count as medicines, a nasal spray counts as one only when sold with claims to treat or prevent disease, 16 suspected reports were logged from 2012 to 2022, and selling or advertising an unauthorised medicine is not allowed.; Australia TGA safety advisory published 17 August 2026, confirmed on 23 October 2026 through an Internet Archive copy dated 11 October 2026 because the live TGA page could not be fetched directly: Melanotan II is prescription only, sits on no approved register, and supplying it to tan is illegal in any form. Testing of five seized nasal spray bottles labelled the same strength found 22 to 54 mg of Melanotan II each.; Drug Administration of Vietnam: no public record of a Melanotan II approval or a melanotan tanning spray warning was found in our checks, in English and in Vietnamese, on 23 October 2026.

What we saw when we read eight real listings

On 23 October 2026 we read eight public listings for melanotan nasal sprays that come up in a normal search. We only read them. We did not buy anything, sign in or fill any form. Two more listings were offline that day and left out. We name no store here; each is described by type only.

The strengths were all over the place. The eight listings we read on 23 October 2026 printed these amounts on their labels:

Per bottle: 10 mg on some, 12.5 mg on one, 20 mg on one. Per spray: about 100 to 333 micrograms.

Disclaimer: these are label figures copied from seller listings, not tested contents and not a dose for anyone. The regulator testing above found real contents that did not match labels. Melanotan II has no approved dose for tanning anywhere we checked.

Only two of the eight tied a lab report to the batch in the bottle. For the rest, a buyer could not match the paper to the product. Seven of the eight also said the product was "for research use only." So at least five pages made a tanning or health claim and also said research use only, which do not fit together.

That is our own snapshot, not a survey of the whole market. It lines up with the regulator finding above: labels on these products are not something a buyer can rely on. For what a real lab report looks like, see our certificates page.

Is nasal tanning spray legal?

It depends on the country. In Australia, Melanotan II is a prescription only medicine, and no product is approved. The regulator says supplying it to tan is illegal in any form: spray, tablet, shot or cream. Advertising it to the public is not allowed either.

The UK has a twist. Injections and pens count as medicines. A nasal spray counts as one only if it is sold with claims to treat or prevent disease. Without those claims, it is generally not treated as a medicine. If a product is an unlicensed medicine, it cannot be sold or advertised. In the US, the drug is not approved for any use, and the FDA has acted against a seller.

The rules are enforced. In 2026 the Australian regulator gave one seller 27 infringement notices, worth more than 101,000 Australian dollars, over the alleged supply of Melanotan II. This is a short summary of the rules, not legal advice.

Sources: Australia TGA safety advisory published 17 August 2026, confirmed on 23 October 2026 through an Internet Archive copy dated 11 October 2026 because the live TGA page could not be fetched directly: Melanotan II is prescription only, sits on no approved register, and supplying it to tan is illegal in any form. Testing of five seized nasal spray bottles labelled the same strength found 22 to 54 mg of Melanotan II each.; UK MHRA freedom of information reply 24/274, dated 17 April 2024 (PDF read 23 October 2026): injections and pens count as medicines, a nasal spray counts as one only when sold with claims to treat or prevent disease, 16 suspected reports were logged from 2012 to 2022, and selling or advertising an unauthorised medicine is not allowed.; United States FDA, via the US Department of Justice press release (read 23 October 2026 through an Internet Archive copy, as the live page returned no text): Melanotan II is not approved by the FDA. The FDA warned a seller in August 2007 that it could not be sold without approval, and in 2015 the former owner of that company pleaded guilty to federal charges and admitted selling the unapproved drug.; Australia TGA media release published 21 May 2026 (read 23 October 2026 through an Internet Archive copy): 27 infringement notices totalling 101,412 Australian dollars went to one New South Wales person for the alleged supply of Melanotan II, and were paid in May 2026.

Why is the amount in each bottle a problem?

Because it is not controlled. When the Australian regulator tested five seized bottles that all carried the same strength on the label, the real amount ranged from about 22 to 54 mg per bottle. That is more than a twofold gap between bottles that claimed to be identical.

The regulator says this kind of swing raises the chance of harm, because a user cannot know how much they are taking. We report the figure only to show how uneven these products are. It is not a guide to using one, and this page gives no instructions for that.

Sources: Australia TGA safety advisory published 17 August 2026, confirmed on 23 October 2026 through an Internet Archive copy dated 11 October 2026 because the live TGA page could not be fetched directly: Melanotan II is prescription only, sits on no approved register, and supplying it to tan is illegal in any form. Testing of five seized nasal spray bottles labelled the same strength found 22 to 54 mg of Melanotan II each.

What risks have regulators reported?

The alerts name several. The Australian regulator lists more moles and freckles, changes to moles you already have, and serious skin cancer. Its 2025 warning also named kidney problems and swelling of the brain. The UK regulator has logged suspected side effect reports for Melanotan II over the years.

• Changes to moles matter, because the skin pigment system is exactly what these products push on.
• Unknown ingredients add their own risk on top of the peptide itself.
• These points come from safety warnings and reports, not from controlled trials.

None of this is a diagnosis or a scare for its own sake. It is what the regulators have put in writing, and it is why they warn people off the products.

Sources: Australia TGA 2025 public warning, read 23 October 2026 through the Australian Journal of Pharmacy report dated 24 January 2025 because the TGA page could not be fetched directly: the regulator said melanotan tanning products raise the risk of serious skin cancers, kidney problems and swelling of the brain, along with more moles and freckles.; UK MHRA freedom of information reply 21/1237, dated 20 December 2021 (PDF read 23 October 2026): a melanotan nasal spray sold without medical claims is generally not regulated as a medicine, and 13 suspected side-effect reports were logged from 2011 to 2021.

How is this different from the peptide itself?

The spray is a product trend. The peptide inside it, Melanotan II, is a research compound with its own page here. The tanning-spray format is what regulators are reacting to, because it is sold to the public as an easy cosmetic rather than handled as the unapproved drug it is.

Some nasal sprays hold other research peptides and have nothing to do with tanning. Our guide to the peptide nasal spray format covers those, and the Melanotan I page explains how the two melanotan molecules differ.

Sources: UK MHRA freedom of information reply 24/274, dated 17 April 2024 (PDF read 23 October 2026): injections and pens count as medicines, a nasal spray counts as one only when sold with claims to treat or prevent disease, 16 suspected reports were logged from 2012 to 2022, and selling or advertising an unauthorised medicine is not allowed.

Common questions

Sources: Australia TGA safety advisory published 17 August 2026, confirmed on 23 October 2026 through an Internet Archive copy dated 11 October 2026 because the live TGA page could not be fetched directly: Melanotan II is prescription only, sits on no approved register, and supplying it to tan is illegal in any form. Testing of five seized nasal spray bottles labelled the same strength found 22 to 54 mg of Melanotan II each.; Australia TGA 2025 public warning, read 23 October 2026 through the Australian Journal of Pharmacy report dated 24 January 2025 because the TGA page could not be fetched directly: the regulator said melanotan tanning products raise the risk of serious skin cancers, kidney problems and swelling of the brain, along with more moles and freckles.; UK MHRA freedom of information reply 24/274, dated 17 April 2024 (PDF read 23 October 2026): injections and pens count as medicines, a nasal spray counts as one only when sold with claims to treat or prevent disease, 16 suspected reports were logged from 2012 to 2022, and selling or advertising an unauthorised medicine is not allowed.