An underground economy for unlicensed weight-loss drugs is being driven by TikTok fitness influencers and vendors 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 fat-burning properties. Viewers are encouraged to contact these profiles directly for supplier links, while also obtaining promotional offers.
Separately, a flourishing trade exists on Telegram, where groups with numerous of members share “before and after” images, injection guides and claims of next-day UK delivery. Sellers promote the substance there before redirecting buyers to other platforms for transactions.
This medication is an investigational injection developed by American pharmaceutical company Eli Lilly. The treatment targets three gut hormones – glucagon-like peptide-1, glucose-dependent insulinotropic polypeptide and pancreatic hormone. Early trials suggest it could help patients reduce up to 25% of their total weight. Nicknamed the “triple G”, the drug is being hailed digitally as the successor to Ozempic.
Nevertheless, physicians and chemists have warned that the distribution of what is still an unlicensed medication in the United Kingdom is a cause for concern and could result in individuals injecting products of unknown origin.
Several professionals said the demand for the experimental drug could be connected to the rising cost of licensed weight loss treatments such as Mounjaro.
Marketing the unapproved drug on TikTok or messaging apps is illegal in the UK, as it is an unapproved drug that cannot be promoted or supplied for human use under the Human Medicines Regulations 2012.
Some content creators try to circumvent the rules by calling to the substance as a “research chemical” or describing it as “not for human consumption”. The substance is not a controlled substance, but promotion and supply can still breach medicines, marketing, and consumer laws, potentially leading to fines, legal action or imprisonment.
Based on TikTok, the platform has removed problematic material and prohibited related hashtags and search suggestions. The organization said it was committed to maintaining the platform safe and investing in strengthening compliance measures.
Investigations also found communities with up to nine thousand participants marketing the experimental drug using Telegram's integrated discovery tool, which operates like a public directory. Typing “retatrutide” instantly displays groups with numerous of members, populated with photos of weight loss, glowing testimonials and detailed instructions for preparing or administering at residence.
Within minutes of entering one community, a seller shared WhatsApp details, where the majority of purchases take place. The seller sent an instruction manual and guaranteed delivery within 48 hours. When asked whether the substance was genuine, one vendor responded: “You can’t be sure.” Another provided a photo of a alleged testing documentation. None inquired about weight, medical conditions or previous experience.
Inside these communities, posts display dark colored packages with postal service stickers, claiming to contain new batches. One message read: “It took eight of us to load them this morning.”
Customers can select between dry substance containers, mixed at residence with purified liquid, or ready-to-use pens usually sold at 160 pounds for 20mg. When asked how long a pen should be used, sellers give contradictory responses varying between a several days to “depends on your body”.
A spokesperson for the messaging service stated it regularly moderated dangerous content on its platform including content that promoted the “misuse of controlled medications”. The company added that it removed “millions of pieces of harmful content each day”.
“People are administering materials they cannot confirm. Although the research behind this drug is valid, these digital products may not include what they advertise,” said a pharmacy expert, the head of pharmaceutical services at Chemist4U.
A medical professional of an online medical service linked the surge in demand to current cost increases for approved slimming medications such as Mounjaro. “With costs rising, patients are turning to online platforms. But fake treatments are extremely dangerous. You cannot know what’s inside or whether the environment they were made in was sterile,” she said.
Her staff has previously seen patients injured by personal administration from unconfirmed sources. “We understand the frustration, but buying from Telegram or WhatsApp is gambling with your health,” stated Wyllie. “These substances could be impure or improperly measured.”
A spokesperson from the pharmaceutical company said retatrutide was in phase 3 clinical trials and had not been reviewed or approved by any regulatory agency anywhere in the world. “Consequently at this time no one can market [it] for personal consumption,” they said, adding that any product “misleadingly claiming itself as a company investigational substance not yet approved … may subject users to possibly serious medical dangers”.