An underground market for unlicensed slimming medications is being driven by TikTok fitness influencers and sellers on communication apps, based on new investigations.
The experimental drug, which is still in clinical trials, is being advertised by social media influencers for its alleged weight-reducing effects. Followers are encouraged to contact these accounts directly for supplier links, while also receiving promotional offers.
Separately, a flourishing market exists on Telegram, where communities with numerous of participants share “before and after” photos, administration instructions and claims of rapid UK delivery. Sellers market the drug there before directing buyers to WhatsApp for transactions.
This medication is an experimental injectable created by American pharmaceutical company Eli Lilly. The treatment targets three intestinal hormones – GLP-1, glucose-dependent insulinotropic polypeptide and pancreatic hormone. Preliminary studies indicate it could help patients reduce up to 25% of their total weight. Referred to as the “triple G”, the substance is being hailed online as the next Ozempic.
However, doctors and pharmacists have warned that the distribution of what is still an unapproved medication in the United Kingdom is worrisome and could result in individuals injecting substances of uncertain source.
Some professionals stated the demand for retatrutide could be linked to the rising cost of licensed slimming treatments such as Mounjaro.
Marketing retatrutide on social media or messaging apps is prohibited in the UK, as it is an unlicensed drug that cannot be marketed or distributed for human use under the Human Medicines Regulations 2012.
Several content creators try to sidestep the rules by calling to the drug as a “research chemical” or describing it as “not for human consumption”. The substance is not a controlled drug, but advertising and distribution can still breach pharmaceutical, advertising, and consumer laws, potentially leading to fines, legal action or prison.
According to TikTok, the service has removed violative material and prohibited associated hashtags and search suggestions. The organization said it was dedicated to maintaining the platform secure and allocating resources in enhancing compliance measures.
Investigations also found groups with up to 9,000 participants selling the experimental drug using the platform's built-in search feature, which functions like a online catalog. Entering “retatrutide” instantly displays groups with thousands of users, populated with photos of weight loss, glowing testimonials and detailed guides for preparing or injecting at home.
Within minutes of entering one group, a vendor shared contact information, where the majority of purchases take place. The vendor sent an instruction manual and promised delivery within 48 hours. When questioned whether the product was authentic, one seller responded: “You can’t be sure.” Another shared a photo of a alleged laboratory certificate. None inquired about weight, medical conditions or previous experience.
Inside these communities, posts show dark colored packages with postal service stickers, claiming to contain fresh supplies. One communication read: “It took eight of us to load them this morning.”
Customers can select between dry substance containers, prepared at residence with purified liquid, or ready-to-use injectors usually sold at £160 for 20mg. When questioned how long a pen should last, vendors give contradictory responses ranging from a few weeks to “depends on your body”.
A representative for Telegram said it actively monitored dangerous content on its platform including material that promoted the “misuse of controlled medications”. The company noted that it removed “millions of pieces of harmful content each day”.
“People are injecting substances they cannot confirm. Although the research behind this drug is sound, these online versions may not contain what they claim,” said Jason Murphy, the director of pharmaceutical services at Chemist4U.
Dr Crystal Wyllie of an online medical service connected the increase in interest to recent cost increases for authorized weight-loss medications such as Mounjaro. “With costs rising, patients are turning to online platforms. But fake treatments are highly dangerous. You cannot know what’s inside or whether the conditions they were produced in was clean,” she explained.
Her staff has previously encountered patients injured by personal administration from unverified suppliers. “We recognize the disappointment, but buying from messaging apps or WhatsApp is taking chances with your well-being,” said the doctor. “These materials could be contaminated or improperly measured.”
A representative from the pharmaceutical company said the substance was in phase 3 clinical trials and had not been evaluated or approved by any government authority globally. “Consequently at this point no one can sell [it] for human use,” they said, noting that any item “misleadingly claiming itself as a company experimental product not yet approved … may subject patients to potentially serious health risks”.
Elena is a tax policy analyst with over a decade of experience in interpreting IRS data and advocating for taxpayer rights.