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- By Heidi Rogers
- 03 Oct 2026
A shadow economy for unapproved slimming drugs is being driven by TikTok fitness influencers and vendors on messaging platforms, based on recent findings.
The experimental drug, which is still in research studies, is being promoted by social media influencers for its alleged weight-reducing effects. Followers are encouraged to message these profiles privately for supplier links, while also obtaining promotional offers.
Separately, a robust trade exists on Telegram, where communities with numerous of members share “before and after” photos, administration instructions and claims of rapid British shipping. Vendors promote the drug there before redirecting customers to WhatsApp for purchases.
Retatrutide is an experimental injection developed by US drugmaker Eli Lilly. The drug affects three gut hormones – GLP-1, GIP and glucagon. Early trials indicate it could assist individuals reduce up to a quarter of their body weight. Referred to as the “triple G”, the drug is being promoted digitally as the successor to Ozempic.
However, physicians and chemists have warned that the sale of what remains an unapproved drug in the United Kingdom is a cause for concern and could lead to individuals administering products of uncertain source.
Some professionals stated the demand for retatrutide could be connected to the increasing price of approved slimming products such as Mounjaro.
Selling retatrutide on social media or Telegram is prohibited in the UK, as it is an unapproved drug that cannot be marketed or supplied for human use under the British medical regulations.
Several content creators try to sidestep the rules by calling to the substance as a “research chemical” or citing it as “not for human consumption”. The substance is not a restricted drug, but promotion and supply can still violate medicines, marketing, and customer regulations, risking fines, prosecution or prison.
According to the social media company, the service has taken down problematic content and banned associated keywords and search suggestions. The organization said it was dedicated to keeping the service safe and allocating resources in enhancing compliance measures.
Investigations also found communities with up to nine thousand members selling the experimental drug using Telegram's integrated search feature, which operates like a public directory. Entering “retatrutide” instantly displays channels with thousands of users, filled with images of slimming results, glowing reviews and step-by-step instructions for mixing or administering at residence.
Within moments of joining one group, a seller posted WhatsApp details, where most transactions take place. The seller sent an guidebook and promised delivery within 48 hours. When asked whether the product was authentic, one vendor said: “You can’t be sure.” Another shared a image of a supposed testing documentation. None asked about weight, medical conditions or previous experience.
Within these communities, messages show black plastic packages with postal service labels, claiming to include fresh supplies. One message read: “It took eight of us to load them this morning.”
Customers can choose between powder vials, mixed at residence with sterile water, or pre-filled injectors typically sold at £160 for 20 milligrams. When questioned how much time a pen should last, vendors give contradictory responses ranging from a several days to “depends on your body”.
A spokesperson for Telegram stated it actively moderated harmful content on its service including content that promoted the “misuse of controlled medications”. The company added that it eliminated “millions of pieces of harmful content each day”.
“People are injecting substances they cannot confirm. Even if the science behind this drug is valid, these digital versions may not include what they advertise,” said Jason Murphy, the director of pharmacy at a pharmacy service.
A medical professional of Asda Online Doctor linked the surge in interest to current price rises for approved weight-loss drugs such as Mounjaro. “With costs rising, individuals are turning to social media. But counterfeit treatments are highly dangerous. You can’t be certain what’s inside or whether the environment they were produced in was clean,” she explained.
Her team has already encountered individuals injured by self-injection from unconfirmed suppliers. “We recognize the disappointment, but purchasing from messaging apps or WhatsApp is taking chances with your health,” stated the doctor. “These materials could be impure or incorrectly dosed.”
A representative from Eli Lilly stated the substance was in phase 3 research studies and had not been reviewed or approved by any regulatory agency globally. “Therefore at this time no one can market [it] for personal consumption,” they said, noting that any item “falsely representing itself as a company experimental product not yet approved … may expose users to potentially significant medical dangers”.
A digital content strategist with a passion for newsletter curation and audience engagement, sharing insights from years in online media.