An underground market for unlicensed slimming drugs is propelled by TikTok fitness influencers and sellers on messaging platforms, according to recent findings.
Retatrutide, which remains in research studies, is being promoted by social media influencers for its alleged fat-burning properties. Viewers are encouraged to contact these profiles directly for supplier links, while also obtaining promotional offers.
Separately, a flourishing market exists on Telegram, where communities with thousands of members share “before and after” photos, injection guides and claims of next-day British shipping. Sellers promote the drug there before redirecting buyers to WhatsApp for transactions.
Retatrutide is an experimental injectable created by US drugmaker Eli Lilly. The drug affects three gut hormones – GLP-1, GIP and pancreatic hormone. Preliminary studies suggest it could help patients reduce up to 25% of their body weight. Referred to as the “triple G”, the drug is being hailed online as the next Ozempic.
Nevertheless, doctors and chemists have warned that the distribution of what is still an unapproved drug in the United Kingdom is a cause for concern and could lead to individuals injecting products of uncertain source.
Some professionals said the demand for the experimental drug could be connected to the rising price of approved slimming treatments such as Mounjaro.
Selling the unapproved drug on TikTok or Telegram is illegal in the UK, as it is an unapproved medication that cannot be promoted or distributed for personal consumption under the British medical regulations.
Some content creators try to circumvent the rules by calling to the drug as a “research chemical” or describing it as “not for human consumption”. Retatrutide is not a controlled substance, but promotion and distribution can still breach medicines, advertising, and consumer regulations, risking fines, legal action or prison.
According to the social media company, the platform has removed problematic content and prohibited related hashtags and query recommendations. The organization stated it was committed to maintaining the service safe and investing in enhancing enforcement strategies.
Research also found groups with up to nine thousand participants marketing retatrutide using the platform's built-in search feature, which functions like a public directory. Entering “retatrutide” instantly brings up groups with thousands of users, populated with photos of slimming results, positive reviews and detailed guides for preparing or injecting at home.
Within minutes of joining one community, a seller posted WhatsApp details, where the majority of purchases occur. The seller provided an instruction manual and promised shipping within 48 hours. When asked whether the product was genuine, one vendor said: “You can’t be sure.” Another shared a photo of a alleged laboratory certificate. None inquired about body mass, medical conditions or previous experience.
Within these communities, posts display dark colored parcels with postal service stickers, claiming to include new batches. One communication stated: “It took eight of us to load them this morning.”
Customers can choose between dry substance containers, prepared at residence with purified liquid, or ready-to-use injectors typically priced at £160 for 20mg. When asked how much time a pen should last, vendors give conflicting responses varying between a few weeks to “depends on your body”.
A spokesperson for the messaging service said it regularly moderated dangerous content on its service including material that encouraged the “misuse of controlled medications”. The organization noted that it eliminated “millions of pieces of harmful content each day”.
“People are administering substances they can’t verify. Although the science behind retatrutide is valid, these digital products may not contain what they advertise,” said a pharmacy expert, the head of pharmaceutical services at Chemist4U.
Dr Crystal Wyllie of an online medical service connected the increase in demand to recent price rises for authorized slimming drugs such as Mounjaro. “With costs rising, individuals are turning to social media. But fake treatments are extremely risky. You cannot know what’s inside or whether the conditions they were produced in was sterile,” she said.
Her team has already encountered individuals harmed by self-injection from unconfirmed suppliers. “We recognize the frustration, but buying from Telegram or WhatsApp is taking chances with your health,” said Wyllie. “These materials could be contaminated or incorrectly dosed.”
A representative from Eli Lilly said retatrutide was in phase 3 clinical trials and had not been reviewed or authorized by any regulatory agency globally. “Therefore at this time no one can sell [it] for human use,” they said, adding that any item “falsely representing itself as a Lilly investigational product not yet approved … may expose patients to possibly serious health risks”.
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