An underground market for unlicensed weight-loss medications is propelled by TikTok fitness influencers and sellers on communication apps, according to new investigations.
Retatrutide, which is still in research studies, is being advertised by online personalities for its supposed weight-reducing effects. Viewers are urged to message these profiles directly for supplier links, while also receiving promotional offers.
Additionally, a flourishing trade exists on messaging services, where communities with thousands of participants share “before and after” photos, administration instructions and assertions of next-day UK delivery. Vendors market the drug there before directing customers to other platforms for transactions.
This medication is an experimental injection created by US drugmaker Eli Lilly. The drug targets three intestinal hormones – glucagon-like peptide-1, GIP and pancreatic hormone. Preliminary studies indicate it could assist patients reduce up to a quarter of their total weight. Nicknamed the “triple G”, the drug is being hailed online as the successor to Ozempic.
Nevertheless, physicians and chemists have cautions that the sale of what remains an unapproved medication in the United Kingdom is a cause for concern and could result in users injecting products of uncertain source.
Some experts said the demand for retatrutide could be linked to the increasing cost of licensed slimming products such as Mounjaro.
Marketing the unapproved drug on social media or messaging apps is illegal in the United Kingdom, as it is an unlicensed medication that cannot be promoted or supplied for human use under the Human Medicines Regulations 2012.
Some content creators try to sidestep the rules by referring to the drug as a “research chemical” or citing it as “not for human consumption”. Retatrutide is not a restricted drug, but promotion and distribution can still breach medicines, marketing, and consumer laws, potentially leading to penalties, prosecution or imprisonment.
According to TikTok, the platform has removed violative material and banned related keywords and query recommendations. The organization stated it was committed to maintaining the service secure and allocating resources in enhancing enforcement strategies.
Investigations also discovered communities with up to 9,000 participants marketing retatrutide using Telegram's built-in search feature, which functions like a public directory. Typing “retatrutide” immediately displays groups with thousands of members, filled with images of weight loss, glowing reviews and detailed guides for mixing or administering at residence.
After minutes of joining one community, a vendor shared WhatsApp details, where the majority of transactions take place. The vendor sent an guidebook and guaranteed delivery within 48 hours. When asked whether the substance was authentic, one vendor said: “You can’t be sure.” Another shared a photo of a supposed laboratory certificate. Not one asked about weight, health issues or past usage.
Inside these groups, posts display black plastic packages with postal service stickers, claiming to include fresh supplies. One message read: “It took eight of us to load them this morning.”
Buyers can select between dry substance containers, mixed at residence with purified liquid, or ready-to-use pens usually sold at 160 pounds for 20 milligrams. When asked how long a pen should be used, sellers give conflicting answers ranging from a several days to “depends on your body”.
A representative for the messaging service said it regularly monitored harmful content on its platform including material that promoted the “misuse of controlled medications”. The organization added that it removed “millions of pieces of harmful content each day”.
“Individuals are injecting materials they can’t verify. Although the research behind retatrutide is valid, these online versions may not include what they claim,” said Jason Murphy, the director of pharmaceutical services at a pharmacy service.
Dr Crystal Wyllie of Asda Online Doctor linked the increase in demand to recent price rises for approved slimming drugs such as Mounjaro. “With prices increasing, patients are turning to social media. But fake injections are highly dangerous. You can’t be certain what’s inside or whether the environment they were made in was clean,” she explained.
Her staff has previously encountered patients harmed by self-injection from unconfirmed sources. “We understand the frustration, but purchasing from messaging apps or communication platforms is gambling with your well-being,” said the doctor. “These materials could be impure or incorrectly dosed.”
A representative from Eli Lilly said retatrutide was in third stage clinical trials and had not been reviewed or authorized by any regulatory agency anywhere in the world. “Consequently at this point no one can sell [it] for human use,” they explained, adding that any product “misleadingly claiming itself as a Lilly investigational product not yet authorized … may subject patients to potentially serious health risks”.
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