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A shadow market for unapproved slimming medications is propelled by social media fitness personalities and sellers on communication apps, according to recent findings.
The experimental drug, which is still in clinical trials, is being promoted by social media influencers for its supposed weight-reducing properties. Followers are urged to message these profiles directly for source information, while also obtaining promotional offers.
Separately, a flourishing market exists on Telegram, where groups with thousands of participants share “before and after” images, administration instructions and assertions of rapid British shipping. Vendors market the drug there before directing buyers to other platforms for transactions.
This medication is an investigational injectable developed by US drugmaker Eli Lilly. The drug affects three gut hormones – glucagon-like peptide-1, GIP and pancreatic hormone. Early trials indicate it could help individuals lose up to 25% of their total weight. Referred to as the “triple G”, the drug is being hailed digitally as the successor to Ozempic.
However, physicians and pharmacists have warned that the sale of what is still an unlicensed medication in the UK is worrisome and could result in users injecting products of uncertain source.
Several experts stated the demand for retatrutide could be connected to the increasing price of licensed weight loss treatments such as Mounjaro.
Marketing retatrutide on TikTok or messaging apps is prohibited in the United Kingdom, as it is an unlicensed drug that must not be marketed or supplied for personal consumption under the Human Medicines Regulations 2012.
Some content creators attempt to circumvent the rules by calling to the substance as a “research chemical” or describing it as “not for human consumption”. Retatrutide is not a restricted drug, but advertising and distribution can still violate pharmaceutical, marketing, and consumer regulations, potentially leading to fines, legal action or prison.
Based on TikTok, the service has taken down violative content and banned associated keywords and query recommendations. The company stated it was committed to maintaining the service safe and allocating resources in strengthening compliance measures.
Investigations also found communities with up to nine thousand members marketing retatrutide using Telegram's integrated discovery tool, which functions like a online catalog. Typing “retatrutide” instantly displays channels with numerous of users, populated with photos of weight loss, positive reviews and detailed instructions for preparing or injecting at residence.
After moments of entering one group, a vendor posted contact information, where the majority of purchases take place. The seller sent an instruction manual and guaranteed shipping within 48 hours. When asked whether the product was genuine, one vendor said: “You can’t be sure.” Another provided a photo of a alleged testing documentation. None asked about weight, health issues or past usage.
Inside these groups, messages show dark colored packages with postal service stickers, stating to include new batches. One message stated: “It took eight of us to load them this morning.”
Buyers can select between powder vials, prepared at residence with purified liquid, or pre-filled pens usually priced at 160 pounds for 20mg. When questioned how long a injector should be used, vendors give conflicting answers ranging from a few weeks to “depends on your body”.
A spokesperson for the messaging service said it regularly monitored dangerous content on its service including material that encouraged the “misuse of controlled medications”. The company noted that it removed “millions of pieces of harmful content each day”.
“Individuals are injecting materials they can’t verify. Even if the research behind this drug is valid, these digital versions may not include what they advertise,” stated a pharmacy expert, the director of pharmaceutical services at Chemist4U.
A medical professional of an online medical service connected the surge in demand to current cost increases for approved slimming medications such as Mounjaro. “With prices increasing, individuals are using social media. But counterfeit injections are extremely dangerous. You cannot know what’s inside or whether the environment they were made in was sterile,” she explained.
Her team has previously seen patients harmed by self-injection from unconfirmed suppliers. “We recognize the frustration, but buying from Telegram or communication platforms is gambling with your health,” said Wyllie. “These materials could be contaminated or incorrectly dosed.”
A representative from Eli Lilly stated retatrutide was in third stage clinical trials and had not been evaluated or approved by any regulatory agency anywhere in the world. “Consequently at this time no one can sell [it] for personal consumption,” they said, noting that any product “falsely representing itself as a Lilly experimental substance not yet approved … may subject patients to possibly serious medical dangers”.
A seasoned gambling analyst with over a decade of experience in reviewing UK casinos and promoting responsible gaming.
Adam Barrett
| 13 Sep 2026
Adam Barrett
| 12 Sep 2026