An underground market for unlicensed slimming medications is being driven by TikTok fitness influencers and sellers on messaging platforms, based on new investigations.
Retatrutide, which remains in clinical trials, is being advertised by online personalities for its supposed weight-reducing effects. Followers are urged to message these accounts privately for supplier links, while also receiving discount codes.
Separately, a flourishing trade exists on messaging services, where communities with thousands of participants share “before and after” images, administration instructions and claims of rapid UK delivery. Sellers promote the drug there before redirecting customers to WhatsApp for transactions.
Retatrutide is an investigational injectable developed by American pharmaceutical company Eli Lilly. The drug targets three intestinal hormones – glucagon-like peptide-1, glucose-dependent insulinotropic polypeptide and pancreatic hormone. Preliminary studies suggest it could assist individuals reduce up to 25% of their total weight. Referred to as the “triple G”, the drug is being promoted digitally as the next Ozempic.
Nevertheless, doctors and pharmacists have cautions that the distribution of what remains an unlicensed medication in the United Kingdom is worrisome and could result in users injecting products of unknown origin.
Several professionals stated the demand for retatrutide could be linked to the increasing cost of approved slimming treatments such as Mounjaro.
Selling retatrutide on social media or Telegram is prohibited in the UK, as it is an unlicensed medication that must not be marketed or distributed for human use under the British medical regulations.
Several content creators attempt to circumvent the rules by calling to the drug as a “research chemical” or describing it as “not for human consumption”. The substance is not a restricted drug, but advertising and supply can still violate medicines, marketing, and consumer laws, potentially leading to fines, prosecution or imprisonment.
According to TikTok, the platform has taken down problematic material and prohibited related keywords and search suggestions. The company stated it was dedicated to maintaining the service safe and investing in strengthening enforcement strategies.
Research also found communities with up to 9,000 participants selling retatrutide using Telegram's integrated search feature, which operates like a online catalog. Typing “retatrutide” instantly displays channels with numerous of members, filled with photos of slimming results, glowing testimonials and detailed instructions for preparing or injecting at residence.
After moments of joining one community, a vendor posted WhatsApp details, where the majority of purchases take place. The seller provided an instruction manual and guaranteed shipping within 48 hours. When asked whether the substance was authentic, one seller said: “You can’t be sure.” Another shared a photo of a alleged laboratory certificate. Not one asked about body mass, medical conditions or past usage.
Inside these groups, messages show dark colored parcels with postal service labels, claiming to include new batches. One message stated: “It took eight of us to load them this morning.”
Customers can select between powder vials, prepared at residence with sterile water, or pre-filled injectors typically sold at £160 for 20mg. When asked how much time a pen should be used, sellers give contradictory answers ranging from a few weeks to “depends on your body”.
A spokesperson for the messaging service stated it regularly monitored harmful content on its platform including content that encouraged the “misuse of controlled medications”. The company added that it removed “millions of pieces of harmful content each day”.
“Individuals are administering materials they can’t verify. Although the research behind retatrutide is sound, these digital products 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 linked the surge in interest to current price rises for approved weight-loss drugs such as Mounjaro. “With prices rising, individuals are using online platforms. But counterfeit treatments are highly dangerous. You can’t be certain what’s contained or whether the conditions they were made in was sterile,” she said.
Her team has previously seen patients harmed by personal administration from unverified sources. “We understand the frustration, but buying from Telegram or WhatsApp is gambling with your well-being,” stated the doctor. “These materials could be impure or improperly measured.”
A representative from the pharmaceutical company said the substance was in third stage clinical trials and had not been reviewed or authorized 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 “misleadingly claiming itself as a company experimental substance not yet approved … may expose users to possibly significant health risks”.
Elara Vance is a technology strategist with over a decade of experience in IT consulting, specializing in digital transformation and cybersecurity solutions.