Clinically proven to help you lose weight. Get a month’s supply delivered to your door.
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We are proud to be the No. 1 medicated weight-loss provider in the UK.
Weight loss injections, more scientifically known as GLP-1 injections, are medications that target GLP-1 receptors and are clinically proven to support weight loss.
Though there are many different weight loss injections, they all tend to have a similar mechanism of action. They work by mimicking natural gut hormones, GLP-1, which help control appetite, hunger, and feelings of fullness. This helps reduce food cravings and noise, leading to weight loss.
While the effectiveness may vary depending on the weight loss injection, Mounjaro (tirzepatide) is proven to support significant long-term weight loss. A 36-week clinical trial involving 783 patients across four countries achieved an average weight loss of over 20% of their body weight. An additional 88-week clinical trial with 806 patients achieved an average weight loss of over 25% of their body weight. All patients received lifestyle and physical activity counseling and followed a reduced-calorie diet during the trial.
There are three weight loss injections licensed by the government’s MHRA (Medicines and Healthcare Products Regulatory Agency) for weight loss and the treatment of obesity: Mounjaro, Wegovy, and Saxenda. Mounjaro is currently being trialed by the NHS for a select group of participants with a BMI over 40 and three separate health conditions.
Because weight loss injections contribute to weight loss, the long-term effects of the medication are largely positive, as they can help you lead a healthier lifestyle. Some of the long-term effects include:
Before using weight loss injections, it’s important to be aware of potential side effects and precautions. Rest assured, any side effects are usually mild and tend to occur when you first start the medication or increase your dose, as your body adjusts to it.
The most common side effects are:
At Voy, you can contact a prescribing clinician at any time to assist with any side effects that may arise.
Many people feel reduced appetite in weeks and see noticeable weight loss, typically 2-3kg, in the first month. Full effects build over 12 weeks, kickstarting your weight loss journey.
There are several different weight loss injections, and we prescribe each medication based on your needs and medical history. The only way we can recommend a medication is by having you complete our eligibility quiz.
That being said, the most popular and effective medication is Mounjaro, which targets two gut hormones, GLP-1 and GIP, instead of just one. Wegovy is a slightly older medication that targets only the GLP-1 hormone. Saxenda is the oldest of these medications and is the least effective for weight loss.
The table below will help outline the differences.
We offer all major weight loss medications, tailoring your plan to fit your unique needs.
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Supporting you end-to-end with your medicated weight loss journey.
Safe prescribing tailored to you
Side effect support anytime
Post-medication guidance
Tracking and progress monitoring
Included in every plan to help you succeed.
Experiencing side effects or have questions? Our prescribing clinicians are here to support you.
Work 1:1 with your coach to address lifestyle changes and get ready for life after medication.
Stay motivated with your personal app—track your progress, monitor results, and more.
Get extra needles and a sharps disposal bin to start your journey with confidence and ease.
From first use appetite and interest in food generally has changed completely. For the first time in years I feel in control of food.
Decided to try it as I have tried and failed to lose utilising every diet and eating plan known to man! I have lost 12 lbs so far
My coach was friendly, helpful and understood what support I needed in the immediate period. I can't wait to continue my journey with Voy!
I started my treatment 4 weeks ago and up to now I've lost a stone. I have found all the instructions easy to follow.
My coach Maria has been so helpful, knowledgeable and understanding. It’s easily the best start you could want.
I have started eating better and walking for at least an hour every day. I am only on my 3rd injection and I have already lost half a stone.
Great support from the start and great losses I have seen so far I have lost 24 pound in my first month.
The discussion with my coach did not feel rushed or scripted, delivery has been perfect and I’m almost one stone down!
Amazing product lost 1 stone in a month! Great communications, love the app too
My coach has been supportive, checking in on me via WhatsApp. I have lost a stone so far and still have a way to go.
It’s been amazing, the staff is very supportive and help you during the process a lot. I lost 3 kg within 17 days.
I’m actually enjoying it and feel great no hunger whatsoever my energy is amazing.
Very positive first chat with my coach, Lucy; meds delivered on time; the app seems useful.
Super easy, good advice and regular deliveries. I’m on week 9- 1stone 4lbs down and feeling super!
Talking to a coach is a game changer gave me confidence to start my weight loss journey with voy.
“I can't believe how much weight I have lost . I feel so much better in myself physically & mentally.”
“It’s put a spark back into my life, my energy levels are through the roof, I feel incredible!”
“It’s the first time I’ve been able to start a weight loss programme and stick to it.”
“ I am drawn to healthier foods and my whole lifestyle has changed now. I've lost 15 KGs!”
“A coach & medication has given me new confidence to continue my weight loss journey! ”
“Voy is amazing. The 'food noise' disappeared, and I have started seeing results on the scales.”
“I’m doing so much more with my life, I started wild swimming, I have more energy”
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It can take up to 8-9 weeks to feel the full effects of your medication, but you’ll gradually increase your dose as your body adjusts and your hunger reduces.
Find your optimal dosage and start consistently losing weight. As you get used to the medication, the chances of experiencing side effects should decrease.
You and your coach will chart your course to lasting weight loss, with a plan for maintaining your new healthy habits after completing the medication.
Our clinicians will match you with the right medication based on your medical history and goals.
Need support with side effects, or got unanswered questions? Get access to prescribing clinicians.
Discuss 1:1 with your coach on how to address lifestyle changes to get you ready for life after medication.
Stay motivated by tracking your progress with your personal app. Monitor your results and more.
For the same price as a pharmacy, get personalised care and expert support to reach your goals.
Matt is an Ex-Clinical Director for the National Obesity Forum, embodying a commitment to innovation in the pursuit of holistic obesity solutions. He previously led the largest NHS obesity clinic in the UK for over 20 years.
Anna is a health behaviour change expert and nutritionist with 15 years of experience in coaching. She is the driving force behind the integration of behaviour change psychology into our programme.
At the nutritional helm is Molly Morgan, whose career spans various industries including the NHS, pharmaceutical trials and digital health technology start-ups.
Our industry leading weight loss experts know that there's more to it than ‘eat less, move more’ - that’s why we chose them to create a programme that tackles the root cause of weight gain, by helping you reset your mind and body.
