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- By Joseph Lang
- 13 Sep 2026
A shadow economy for unapproved weight-loss drugs is being driven by social media fitness personalities and vendors on messaging platforms, according to recent findings.
The experimental drug, which is still in research studies, is being promoted by social media influencers for its supposed weight-reducing properties. Viewers are encouraged to message these accounts directly for supplier links, while also obtaining discount codes.
Separately, a flourishing market exists on Telegram, where communities with thousands of participants share “before and after” images, injection guides and claims of next-day British shipping. Vendors market the drug there before redirecting customers to other platforms for transactions.
This medication is an investigational injection created by US drugmaker Eli Lilly. The drug targets three gut hormones – GLP-1, GIP and pancreatic hormone. Early trials indicate it could help patients reduce up to a quarter of their total weight. Referred to as the “triple G”, the drug is being hailed online as the successor to Ozempic.
However, doctors and chemists have warned that the sale of what remains an unapproved drug in the UK is a cause for concern and could lead to individuals injecting substances of uncertain source.
Some experts stated the popularity for the experimental drug could be linked to the rising price of licensed weight loss treatments such as Mounjaro.
Selling the unapproved drug on TikTok or Telegram is illegal in the UK, as it is an unapproved drug that cannot be promoted or distributed for personal consumption under the Human Medicines Regulations 2012.
Some influencers try to sidestep the rules by calling to the drug as a “research chemical” or citing it as “not for human consumption”. Retatrutide is not a controlled substance, but advertising and distribution can still violate pharmaceutical, advertising, and customer laws, risking fines, prosecution or imprisonment.
Based on the social media company, the platform has taken down problematic material and banned related keywords and query recommendations. The organization stated it was committed to keeping the platform safe and allocating resources in strengthening enforcement strategies.
Investigations also found groups with up to nine thousand members selling the experimental drug using the platform's integrated discovery tool, which operates like a online catalog. Entering “retatrutide” immediately displays groups with thousands of members, populated with photos of weight loss, glowing testimonials and step-by-step instructions for mixing or administering at home.
After moments of entering one community, a seller posted WhatsApp details, where the majority of purchases take place. The vendor sent an guidebook and guaranteed shipping within two days. When asked whether the substance was authentic, one seller responded: “You can’t be sure.” Another provided a image of a alleged testing documentation. None asked about body mass, medical conditions or previous experience.
Within these communities, messages show black plastic packages with Royal Mail stickers, claiming to include fresh supplies. One message stated: “It took eight of us to load them this morning.”
Customers can choose between powder vials, prepared at residence with sterile water, or pre-filled pens typically priced at £160 for 20 milligrams. When questioned how much time a pen should last, sellers give conflicting answers varying between a several days to “depends on your body”.
A spokesperson for Telegram said it actively moderated dangerous content on its service including content that promoted the “misuse of controlled medications”. The organization added that it eliminated “millions of pieces of harmful content each day”.
“Individuals are injecting materials they cannot confirm. Even if the science behind this drug is sound, these digital products may not contain what they claim,” stated Jason Murphy, the head of pharmaceutical services at Chemist4U.
Dr Crystal Wyllie of an online medical service connected the increase in demand to current cost increases for authorized weight-loss medications such as Mounjaro. “With prices increasing, patients are turning to social media. But counterfeit treatments are extremely risky. You cannot know what’s contained or whether the conditions they were made in was sterile,” she said.
Her team has already seen individuals harmed by personal administration from unconfirmed suppliers. “We recognize the disappointment, but buying from Telegram or communication platforms is gambling with your health,” stated Wyllie. “These materials could be contaminated or improperly measured.”
A representative from Eli Lilly stated the substance was in third stage research studies and had not been reviewed or approved by any regulatory agency globally. “Consequently at this time no one can market [it] for personal consumption,” they explained, noting that any product “misleadingly claiming itself as a Lilly experimental substance not yet approved … may subject patients to possibly serious medical dangers”.