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Sunday, October 11, 2026
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Social Media Influencers Fueling Unofficial Market for Unapproved Slimming Drug

A shadow market for unapproved slimming drugs is being driven by TikTok fitness influencers and sellers on communication apps, based on new investigations.

Investigational Treatment Acquiring Popularity Via Social Media

Retatrutide, which remains in clinical trials, is being advertised by online personalities for its alleged fat-burning effects. Viewers are urged to message these accounts directly for source information, while also receiving promotional offers.

Thriving Commerce on Social Networks

Separately, a flourishing trade exists on messaging services, where groups with thousands of participants share “before and after” photos, administration instructions and claims of rapid British shipping. Sellers promote the substance there before redirecting customers to WhatsApp for purchases.

Learning About Retatrutide

This medication is an experimental injectable developed by American pharmaceutical company Eli Lilly. The treatment targets three intestinal hormones – glucagon-like peptide-1, glucose-dependent insulinotropic polypeptide and pancreatic hormone. Preliminary studies suggest it could assist patients reduce up to 25% of their total weight. Referred to as the “triple G”, the substance is being hailed online as the successor to Ozempic.

Medical Professionals Voice Worries

However, physicians and pharmacists have warned that the sale of what remains an unapproved drug in the UK is a cause for concern and could lead to users injecting products of unknown origin.

Some professionals said the demand for the experimental drug could be connected to the rising price of approved weight loss products such as Mounjaro.

Legal Position and Enforcement

Marketing the unapproved drug on social media or Telegram is illegal in the UK, as it is an unlicensed medication that must not be promoted or distributed for human use under the British medical regulations.

Some influencers try to circumvent the regulations by referring to the drug as a “research chemical” or citing it as “not for human consumption”. Retatrutide is not a controlled drug, but promotion and supply can still breach medicines, marketing, and consumer regulations, potentially leading to fines, prosecution or imprisonment.

Service Response and Material Removal

According to the social media company, the service has taken down problematic material and prohibited related hashtags and search suggestions. The company stated it was dedicated to maintaining the service secure and allocating resources in strengthening compliance measures.

Online Trading Operations

Research also found communities with up to nine thousand participants selling the experimental drug using the platform's built-in search feature, which operates like a public directory. Typing “retatrutide” immediately displays groups with numerous of users, filled with images of slimming results, glowing reviews and step-by-step instructions for mixing or administering at residence.

After moments of entering one group, a seller shared WhatsApp details, where the majority of purchases occur. The vendor provided an guidebook and guaranteed delivery within two days. When questioned whether the substance was authentic, one seller said: “You can’t be sure.” Another provided a photo of a alleged laboratory certificate. Not one asked about body mass, medical conditions or past usage.

Item Details and Costs

Inside these groups, posts show black plastic packages with Royal Mail labels, claiming to include 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 purified liquid, or ready-to-use injectors usually sold at 160 pounds for 20mg. When asked how much time a pen should be used, vendors give contradictory answers varying between a few weeks to “depends on your body”.

Service Oversight and Security Measures

A representative for the messaging service stated it actively moderated dangerous content on its service including content that promoted the “misuse of controlled medications”. The organization added that it removed “millions of pieces of harmful content each day”.

Medical Professional Warnings

“People are administering materials they cannot confirm. Even if the science behind retatrutide is valid, these online versions may not contain what they claim,” stated Jason Murphy, the director of pharmacy at a pharmacy service.

A medical professional of an online medical service linked the increase in interest to current cost increases for authorized slimming drugs such as Mounjaro. “With costs increasing, patients are turning to social media. But fake treatments are extremely risky. You can’t be certain what’s contained or whether the environment they were made in was clean,” she explained.

Her staff has already seen individuals injured by self-injection from unconfirmed suppliers. “We understand the frustration, but purchasing from Telegram or communication platforms is gambling with your health,” stated Wyllie. “These materials could be impure or incorrectly dosed.”

Manufacturer Position

A representative from the pharmaceutical company said retatrutide 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 human use,” they explained, noting that any product “misleadingly claiming itself as a Lilly investigational product not yet authorized … may subject patients to potentially serious health risks”.

PJ
The writer

Paula Jennings

Marcus Thorne is a technology consultant with over 15 years of experience in IT infrastructure and digital transformation for UK enterprises.

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