A shadow market for unlicensed slimming drugs is being driven by TikTok fitness influencers and sellers on messaging platforms, based on recent findings.
Retatrutide, which is still in research studies, is being promoted by online personalities for its alleged weight-reducing effects. Viewers are urged to message these accounts privately for supplier links, while also receiving discount codes.
Separately, a flourishing market exists on Telegram, where communities with thousands of members share “before and after” photos, administration instructions and claims of rapid UK delivery. Sellers promote the drug there before redirecting buyers to WhatsApp for transactions.
This medication is an investigational injectable developed by American pharmaceutical company Eli Lilly. The drug affects three intestinal hormones – glucagon-like peptide-1, GIP and glucagon. Early trials indicate it could assist individuals reduce up to a quarter of their body weight. Nicknamed the “triple G”, the substance is being promoted online as the successor to Ozempic.
Nevertheless, doctors and pharmacists have cautions that the distribution of what is still an unapproved drug in the United Kingdom is a cause for concern and could result in users injecting products of unknown origin.
Several experts said the popularity for the experimental drug could be linked to the rising cost of approved slimming products such as Mounjaro.
Marketing retatrutide on TikTok or Telegram is illegal in the United Kingdom, as it is an unapproved medication that must not be promoted or supplied for human use under the Human Medicines Regulations 2012.
Some content creators attempt to sidestep the rules by referring to the drug as a “research chemical” or citing it as “not for human consumption”. The substance is not a restricted substance, but promotion and supply can still breach medicines, marketing, and consumer laws, risking fines, legal action or imprisonment.
According to the social media company, the service has removed violative content and prohibited associated hashtags and search suggestions. The company stated it was committed to maintaining the service safe and allocating resources in enhancing enforcement strategies.
Research also discovered groups with up to 9,000 participants selling retatrutide using Telegram's built-in discovery tool, which operates like a public directory. Entering “retatrutide” instantly brings up groups with thousands of users, filled with photos of weight loss, positive testimonials and detailed instructions for preparing or injecting at residence.
Within minutes of joining one group, a seller posted contact information, where most purchases occur. The seller provided an guidebook and guaranteed shipping within 48 hours. When questioned whether the substance was authentic, one vendor responded: “You can’t be sure.” Another shared a image of a supposed laboratory certificate. None inquired about weight, health issues or past usage.
Inside these groups, posts display dark colored parcels with Royal Mail labels, stating to contain fresh supplies. One communication read: “It took eight of us to load them this morning.”
Customers can choose between powder vials, prepared at home with sterile water, or ready-to-use pens typically priced at 160 pounds for 20 milligrams. When asked how long a injector should be used, sellers give contradictory responses ranging from a few weeks to “depends on your body”.
A representative for Telegram said it actively moderated harmful content on its platform including material that promoted the “misuse of controlled medications”. The company noted that it eliminated “millions of pieces of harmful content each day”.
“Individuals are injecting materials they cannot confirm. Although the science behind retatrutide is sound, these online products may not include what they claim,” stated Jason Murphy, the director of pharmacy at Chemist4U.
A medical professional of Asda Online Doctor connected the increase in interest to current cost increases for approved weight-loss drugs such as Mounjaro. “With costs increasing, individuals are turning to online platforms. But counterfeit injections are highly risky. You cannot know what’s inside or whether the environment they were made in was clean,” she said.
Her team has already encountered patients injured by self-injection from unverified suppliers. “We understand the frustration, but buying from Telegram or communication platforms is taking chances with your health,” said Wyllie. “These substances could be impure or incorrectly dosed.”
A spokesperson from Eli Lilly said retatrutide was in third stage research studies and had not been evaluated or authorized by any regulatory agency globally. “Consequently at this point no one can market [it] for human use,” they said, noting that any product “falsely representing itself as a Lilly investigational product not yet approved … may expose patients to potentially serious health risks”.
Smartwatch enthusiast and tech writer based in Enschede, covering wearable innovations.