An underground economy for unlicensed weight-loss medications is being driven by TikTok fitness influencers and sellers on messaging platforms, based on new investigations.
The experimental drug, which is still in clinical trials, is being advertised by online personalities for its supposed weight-reducing effects. Followers are urged to message these accounts privately for source information, while also receiving discount codes.
Separately, a robust trade exists on Telegram, where communities with numerous of participants share “before and after” images, administration instructions and assertions of next-day UK delivery. Vendors market the drug there before directing buyers to WhatsApp for purchases.
This medication is an investigational injectable developed by American pharmaceutical company Eli Lilly. The drug affects three gut hormones – GLP-1, glucose-dependent insulinotropic polypeptide and glucagon. Preliminary studies indicate it could help patients lose up to a quarter of their body weight. Nicknamed the “triple G”, the substance is being hailed online as the successor to Ozempic.
However, doctors and pharmacists have warned that the sale of what is still an unlicensed medication in the UK is worrisome and could result in individuals injecting products of uncertain source.
Several professionals stated the popularity for the experimental drug could be linked to the increasing price of licensed slimming treatments such as Mounjaro.
Selling retatrutide on social media or Telegram is illegal in the UK, as it is an unlicensed medication that cannot be marketed or distributed for human use under the Human Medicines Regulations 2012.
Some influencers try to sidestep the regulations by referring to the substance as a “research chemical” or citing it as “not for human consumption”. The substance is not a controlled drug, but promotion and supply can still breach pharmaceutical, marketing, and customer regulations, risking fines, legal action or imprisonment.
Based on the social media company, the platform has removed problematic material and banned related hashtags and search suggestions. The company said it was dedicated to maintaining the platform safe and investing in strengthening compliance measures.
Research also discovered groups with up to 9,000 participants selling retatrutide using the platform's built-in discovery tool, which functions like a public directory. Typing “retatrutide” immediately displays groups with numerous of users, populated with images of slimming results, glowing reviews and detailed guides for mixing or injecting at residence.
After moments of entering one group, a seller shared WhatsApp details, where the majority of transactions take place. The seller sent an instruction manual and guaranteed shipping within two days. When questioned whether the substance was genuine, one seller said: “You can’t be sure.” Another shared a image of a supposed testing documentation. Not one inquired about body mass, health issues or previous experience.
Within these communities, posts show black plastic parcels with Royal Mail stickers, stating to include new batches. One message read: “It took eight of us to load them this morning.”
Buyers can choose between dry substance containers, mixed at residence with purified liquid, or pre-filled injectors usually priced at 160 pounds for 20 milligrams. When asked how much time a injector should last, sellers give conflicting responses ranging from a few weeks to “depends on your body”.
A spokesperson for the messaging service stated it actively moderated harmful material on its platform including material that encouraged 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 research behind retatrutide is sound, these online versions may not include what they claim,” stated Jason Murphy, the director of pharmaceutical services at a pharmacy service.
Dr Crystal Wyllie of Asda Online Doctor connected the increase in interest to recent price rises for authorized slimming drugs such as Mounjaro. “With prices increasing, individuals are turning to social media. But counterfeit injections are highly risky. You cannot know what’s inside or whether the environment they were made in was sterile,” she said.
Her staff has previously encountered individuals harmed by personal administration from unverified suppliers. “We recognize the disappointment, but purchasing from messaging apps or WhatsApp is taking chances with your well-being,” said Wyllie. “These substances could be impure or incorrectly dosed.”
A representative from Eli Lilly said retatrutide was in phase 3 clinical trials and had not been reviewed or authorized by any regulatory agency anywhere in the world. “Consequently at this point no one can market [it] for human use,” they said, adding that any product “falsely representing itself as a Lilly experimental substance not yet approved … may expose patients to possibly significant health risks”.
A tech journalist specializing in UK digital policy and startup ecosystems, with a background in computer science.