Illicit weight-loss injection factory dismantled by UK regulator

Illicit weight-loss injection factory dismantled by UK regulator

Updated on 17th Nov 2025

In a major crackdown, the Medicines and Healthcare products Regulatory Agency (MHRA) has dismantled what is believed to be the UK’s first illicit production facility for weight-loss medicine – and the largest single seizure of trafficked weight-loss medicines ever recorded globally. 

The raid targeted a warehouse on an industrial estate on the outskirts of Northampton, in collaboration with Northamptonshire Police. Inside, investigators discovered tens of thousands of empty pens for weight-loss injections, raw chemical ingredients, and more than 2,000 unlicensed pens pre-filled with retatrutide and tirzepatide, ready for dispatch. The street value of the finished products alone is estimated at more than a quarter of a million pounds. 

MHRA’s Criminal Enforcement Unit (CEU) also seized sophisticated packaging and manufacturing equipment, and around £20,000 in cash thought to be linked to medicine trafficking. The site is understood to have been used for large-scale manufacture, packaging and distribution of unlicensed and potentially dangerous weight-loss products.

What the officials say

“This is a victory in the fight against the shameless criminals who are putting lives at risk by peddling dangerous and illegal weight loss jabs to make a quick buck,” said health Secretary Wes Streeting. “These unregulated products, made with no regard for safety or quality, posed a major risk to unwitting customers… My message is clear: don’t buy weight-loss medications from unregulated sources. Talk to your GP, seek NHS advice, and don’t line the pockets of criminals who don’t care about your health.”

“This seizure shows the lengths these criminals will go to for profit. … Taking out the first illicit weight loss medicine manufacturing facility found in the UK is a landmark result for the MHRA and a major blow to the illegal trade,” added CEU Head Andy Morling.

“Prescription medicines should only be obtained from a registered pharmacy against a prescription issued by a healthcare professional. Taking prescription medicines sourced in any other way carries serious risks to your health – there are no guarantees about what they contain, and some may even be contaminated with toxic substances.”

Why this matters for aesthetic medicine

For practitioners and patients in the aesthetic-medicine sector, the seizure serves as a stark reminder of the risks posed by unregulated, illegally-manufactured weight-loss injections. These products bypass the rigorous safety and efficacy testing required of approved pharmaceuticals, raising significant concerns about contamination, incorrect dosing, unknown active ingredients, and absence of oversight.

With slimming and body-contouring markets booming, vigilance is essential:

  • Patients may be tempted by cheaper, online weight-loss ‘jabs’, but unlicensed imports may carry serious harm.

  • Aesthetic practitioners should reinforce the importance of prescribing and using only approved medicines under appropriate supervision.

  • Clinics should ensure that any weight-loss treatments administered are with licensed products, supplied through proper channels.

What to do

The MHRA advises anyone who suspects they are experiencing a side effect from a medicine to contact their doctor, pharmacist or nurse, and report it to the MHRA’s Yellow Card scheme.

Moreover, their #FakeMeds campaign site offers guidance on staying safe when buying medicines online.

For those operating in the aesthetic and weight-loss space, this case underscores the dual duty: safeguard patient safety and navigate regulatory compliance. Using licensed, high-quality medicines isn’t just best practice; it’s quite literally a matter of life and death.

You might also like to read Treatment with isotretinoin for patients under 18 must be approved by two prescribers, under new MHRA rules

Kezia Parkins

Kezia Parkins

Published 17th Nov 2025

Kezia Parkins is the deputy editor of Professional Beauty. She has a background in medical journalism and is also as trained nail tech. As such, she is particularly passionate about all thing nails, as well as the science behind beauty products and treatments. Contact her at kezia.p@thepbgroup.com

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