A Guide to Fat Dissolving Injections
- Charis Aesthetics
- Jul 8, 2025
- 15 min read
Updated: Jul 9, 2025
Let's be honest, we all have those stubborn pockets of fat that just refuse to budge, no matter how much we diet or exercise. If you're nodding along, you'll know exactly what I'm talking about. This is where fat-dissolving injections come in, offering a fantastic non-surgical way to target and contour specific areas of your body. These specialised treatments are designed to break down and permanently get rid of fat cells in places like the chin, stomach, and thighs.
What Are Fat Dissolving Injections?

If you've ever felt that frustration with localised fat, you’re definitely not alone. It’s a common story. Fat dissolving injections offer a really precise solution where other methods fall short. Unlike general weight loss, which simply shrinks fat cells, these injections are designed to destroy them for good in the treated area.
Think of it like this: your body has a fixed number of fat cells. When you lose weight, those cells get smaller, but they don't actually go away. Fat-dissolving injections work on a different principle. They use a substance that breaks open the fat cell’s wall, causing it to release all the fatty contents inside.
Once the fat cells are broken down, your body’s natural 'cleanup crew'—the lymphatic system—gets to work. It gradually mops up the debris, processes it, and flushes it out of your system. This biological process leads to a noticeable reduction in fat in that specific spot, giving you a more sculpted and defined look.
Why Are They So Popular?
There's no doubt that the demand for minimally invasive cosmetic treatments is growing. People want real results without the downtime, risks, and expense that come with surgical procedures like liposuction. It’s a trend we're seeing right across the UK, where the aesthetics market is expanding by a healthy 8-10% every year. London, in particular, has become a hotspot for these kinds of advanced treatments, driven by people looking for natural-looking results with minimal interruption to their busy lives.
This popularity is down to a few key things that really resonate with modern clients:
Targeted Action: It precisely treats those small, tricky areas like a "double chin" or love handles.
Non-Surgical: You can avoid general anaesthesia, scalpels, and scars.
Minimal Downtime: Most people can get back to their normal routine almost immediately.
Permanent Results: The fat cells destroyed during the treatment are gone for good.
For a quick summary of what these injections offer, here's a look at the key details.
Fat Dissolving Injections at a Glance
Aspect | Description |
|---|---|
Treatment Time | Typically 30-45 minutes per session. |
Downtime | Minimal; some swelling and bruising is normal for a few days. |
Results | Visible results appear gradually over 4-6 weeks. |
Number of Sessions | Usually 2-4 sessions are recommended for optimal results. |
Pain Level | Mild discomfort; a topical numbing cream is often used. |
Permanence | The destroyed fat cells do not return. |
This table gives a great overview, showing why the treatment is a perfect fit for people who are already near their ideal body weight but just need a little help with those final, stubborn spots. At Charis Aesthetics, our clients love having the ability to fine-tune their shape with such precision.
You can learn more about how our [fat dissolving injections](https://www.charis-aesthetics.co.uk/service-page/fat-dissolving-injections) can help you achieve your body contouring goals and feel more confident.
How Your Body Removes Fat with Injections
The idea of zapping away fat with a simple injection might sound like something out of science fiction. But the science behind fat dissolving injections is surprisingly elegant and works hand-in-hand with your body’s own biology. This isn’t a magic trick; it’s a targeted process that kickstarts your natural systems to get rid of stubborn fat for good.
Think of your fat cells as tiny, over-inflated balloons filled with lipids. Diet and exercise can help deflate these balloons, but the cells themselves never really disappear—they just hang around, waiting for a chance to fill up again. Fat dissolving injections offer a different solution. They don't just shrink the balloons; they pop them. Permanently.
The Secret to Unlocking Fat Cells
So, what’s the secret weapon? The active ingredient in most fat dissolving injections is deoxycholic acid. While that sounds technical, it’s simply a synthetic form of a bile acid your body already produces naturally to break down the fat from your food.
When this compound is carefully injected into a pocket of unwanted fat, it gets to work immediately on the fat cell's outer wall. It essentially dissolves the membrane, causing it to rupture and release its fatty contents. This process is known as adipocytolysis.
The beauty of this treatment is its precision. It only targets the fat cells in the immediate area of the injection, leaving all the surrounding tissues like your skin and muscles completely unharmed.
To make it even clearer, this infographic breaks the whole process down into three simple stages.

As you can see, the journey from injection to elimination is a straightforward biological pathway. It’s not an overnight miracle, but a gradual process that lets your body do what it does best.
Your Body’s Natural Clean-Up Crew
Once those fat cells have been broken down, what happens next? This is where your body’s amazing internal cleaning service—the lymphatic system—takes over. Picture it as the most efficient waste disposal network you can imagine.
Your lymphatic system is constantly working to clear out toxins and waste. A key part of this team is a type of white blood cell called a macrophage.
Think of these macrophages as microscopic 'Pac-Men'. They swarm the treatment area, gobbling up all the cellular debris and the released fatty liquid, kickstarting the clearing process.
From there, your lymphatic system transports this waste material to your liver. The liver then processes these fatty acids just as it would with any fat from your diet, and over the following weeks, your body flushes it all out naturally. This is why you’ll see results emerge gradually—your body needs a bit of time to complete its clean-up job.
So, the whole elimination process boils down to these three key steps:
Injection and Cell Rupture: The deoxycholic acid solution is injected, breaking down the fat cell walls on contact.
Inflammatory Response: Your body triggers a natural inflammatory response, sending in macrophages to clear away the debris.
Metabolic Clearance: The lymphatic system transports the fatty contents to the liver, where they are processed and permanently removed.
The final outcome is a permanent reduction in fat cells in the treated area. Unlike weight loss, where fat cells only shrink and can easily expand again, adipocytolysis ensures those specific cells are gone for good. This makes fat dissolving injections a fantastic, lasting solution for sculpting stubborn spots, as long as you maintain a steady weight and healthy lifestyle.
Target Areas and Realistic Results

One of the best things about fat dissolving injections is their precision. It’s important to understand that they aren’t a whole-body weight loss tool. Instead, think of them as a sculpting instrument, perfect for tackling those stubborn, localised pockets of fat that just won’t shift, no matter how much you diet or exercise. Knowing where these injections shine and what to expect is the key to a happy and successful treatment.
These treatments are at their most effective on smaller, well-defined areas. A subtle reduction in volume here can make a huge difference to your overall silhouette, helping to fine-tune your contours and bring your body shape into a beautiful, natural harmony.
Popular and Effective Treatment Zones
While fat dissolving injections can be used on various parts of the body, some areas respond exceptionally well, giving our clients results they absolutely love. These are the spots where you’ll often see the most rewarding changes.
Here are the most common and effective areas we treat at Charis Aesthetics:
Under the Chin (Submental Fat): This is probably the most popular request we get. Targeting the fat that creates a ‘double chin’ can completely redefine your jawline, creating a sharper, more youthful profile without ever needing surgery.
Stomach Pouch: For those who are otherwise slim but just can't seem to shift that small, persistent pouch on the lower abdomen, these injections can help flatten the area for a much smoother look.
‘Love Handles’ (Flanks): We all know how difficult it can be to shift the fat on the sides of the waist. Injections here can help create a more streamlined torso and make your clothes fit so much better.
Back of the Arms (‘Bingo Wings’): If you have a small amount of loose skin and excess fat on your upper arms, these injections can help create a firmer, more toned appearance.
Inner Thighs: Targeting the fat here can reduce uncomfortable chafing and create a more defined leg shape, giving you a real boost in both comfort and confidence.
The goal isn't dramatic fat removal. It's all about targeted refinement—making subtle, natural-looking improvements that enhance the shape you already have.
Setting Clear Expectations for Your Results
It’s so important to go into this with the right mindset. The results from fat dissolving injections are gradual. This isn't an overnight fix; the real magic happens as your body slowly and naturally clears away the treated fat cells over several weeks.
Think of it like a sculptor carefully chipping away at a block of marble. The final masterpiece isn't revealed in one go but emerges over time with patient, precise work. Your body works in a similar way, gradually revealing a more contoured shape as it heals and processes the treated fat.
Typically, you'll start to see noticeable changes around four to six weeks after your first treatment. This gives your lymphatic system enough time to do its job and flush everything out. The final outcome will continue to improve for a few months after your last session.
Why Multiple Sessions Are Key
For almost everyone, a single session just isn't enough to get the job done properly. Fat reduction is a cumulative process, and we build up to those optimal results over a course of treatments.
The number of sessions you'll need really depends on a few things:
The Treatment Area: Smaller zones like the chin might only need 1-3 sessions.
The Amount of Fat: Denser or slightly larger pockets, like on the stomach or thighs, could need up to 8 sessions.
Your Individual Response: Everyone is different, and your body will metabolise the dissolved fat at its own unique pace.
Each session builds on the last, progressively slimming down the fat layer until we achieve that ideal contour. Here at Charis Aesthetics, we design a personalised treatment plan for you during your consultation, spacing your sessions about four to six weeks apart. This gives your body the time it needs to heal and respond, ensuring you get beautiful, lasting, and completely natural-looking results.
What Happens During Treatment? Your Journey From Start to Finish

Starting any new aesthetic treatment can bring up a few butterflies, but knowing exactly what’s coming makes all the difference. At Charis Aesthetics, we believe in being completely open, so you feel confident and comfortable from your first hello to your final results. Your journey with fat dissolving injections is a simple, three-part process.
Think of it less as a procedure and more as a partnership. We take the time to really listen to your goals, answer every single question, and make sure you’re ready. Let’s walk through what your treatment journey will look like.
H3: Your Initial Consultation
This is where it all begins—your one-to-one consultation. It’s our chance to get to know you, chat about the areas you’d like to treat, and understand your aesthetic goals. It’s a completely no-pressure conversation focused on what you want to achieve.
During this session, our expert practitioner will:
Assess the target area: We’ll take a close look at the specific pocket of fat to make sure fat dissolving injections are genuinely the right fit for you.
Review your medical history: Your safety is everything. We need to check for any contraindications that might make the treatment unsuitable.
Explain the process in detail: We’ll break down how the injections work, what to expect during the appointment, and the kind of results you can realistically look forward to.
Create your personalised treatment plan: Based on our chat, we’ll suggest the number of sessions needed to get you to your goal and map out a clear timeline.
This first meeting is all about ensuring you're a great candidate and that your expectations are perfectly in sync with what the treatment can deliver.
H3: The Injection Procedure Itself
When you come in for your appointment, our main focus is helping you relax. The procedure itself is surprisingly quick and straightforward, usually wrapped up in just 30 to 45 minutes. It’s the kind of treatment that can easily fit into a busy day.
Here’s a step-by-step look at what happens on the day:
Cleansing the Area: First things first, we thoroughly cleanse and disinfect the skin to create a sterile environment.
Marking the Grid: Your practitioner will then carefully mark a grid on your skin. This acts as a precise roadmap, guiding each injection to ensure even, consistent fat reduction.
The Injections: Using a very fine needle, we administer a series of small injections directly into the fatty tissue. Most clients say it feels like a mild stinging or prickling, but it’s over quickly and is generally very manageable.
And just like that, you're done. We place every single injection with expert precision to maximise the treatment’s effectiveness and help you achieve smooth, natural-looking contours.
H3: Recovery and Aftercare Guidance
Your journey doesn’t end when you leave the clinic; this is when your body’s natural processes take over. Following the right aftercare is key to managing side effects and getting the best possible results. It's completely normal to see some swelling, tenderness, and bruising—in fact, it’s a sign that the injections are getting to work.
This inflammatory response is actually a good thing. It’s your body’s signal that the fat cells are breaking down and the "clean-up crew" of macrophages is arriving to clear away the debris.
To help your body heal beautifully, we’ll send you home with detailed aftercare instructions. Key tips usually include:
Avoiding strenuous exercise for 24-48 hours.
Gently massaging the area to help disperse the solution.
Drinking plenty of water to help your lymphatic system do its job.
The popularity of non-surgical options like this is clear. The global market for fat dissolving injections was valued at around $3.5 billion in 2023 and is projected to climb to $5.6 billion by 2031. This trend shows a real demand for effective treatments with manageable downtime, even when factoring in side effects and costs. You can find a full breakdown of the market analysis on reportsnmarkets.com.
By following our guidance, you’ll help your body heal efficiently, paving the way for the sculpted results that will appear over the next few weeks.
Weighing the Benefits and Potential Risks

Making any decision about your body means looking at the full picture. To feel completely confident, it's vital to understand both the exciting upsides and the potential downsides of fat dissolving injections. It’s a fantastic way to achieve your body contouring goals, but a well-informed choice is always the best kind of choice.
Let's start by exploring the compelling reasons so many people are choosing this non-surgical route to redefine their shape.
The Major Advantages of Treatment
One of the biggest draws is that fat dissolving injections are a non-surgical procedure. This means you can completely sidestep the complexities and recovery tied to traditional liposuction—things like general anaesthesia, incisions, and significant downtime.
Another key benefit is the targeted and permanent nature of the results. When the active ingredient destroys fat cells in a specific zone, like under the chin or on the stomach, those cells are gone for good. They don't just shrink; they’re eliminated, offering a lasting solution as long as you maintain a stable weight.
This leads to a few standout advantages:
Minimal Downtime: Most clients can get back to their daily lives almost immediately, with only minor adjustments needed for a day or two.
Natural-Looking Results: The fat reduction happens gradually over several weeks. The change appears subtle and natural, never sudden or artificial.
Improved Confidence: Finally tackling a stubborn area that has bothered you for years can give you a significant boost in self-esteem and change how you feel in your clothes.
By directly addressing localised fat pockets, these injections offer a level of precision that diet and exercise alone often cannot achieve. It’s about sculpting and refining, not just general weight loss.
At Charis Aesthetics, we believe managing the cost of your treatment should be just as straightforward. To make your journey more accessible, we offer flexible payment options. You can explore how to spread the cost of your fat dissolving injections with Clearpay on our website.
Understanding the Potential Side Effects
Just like any aesthetic treatment, we need to have an honest chat about potential side effects. Knowing what to expect is crucial for a smooth and worry-free recovery. The good news is that for most people, any side effects are temporary and a normal part of your body's healing process.
The most common reactions are localised to the treatment area and usually clear up within a week or two. These include:
Swelling: This is the most frequent side effect. It's actually a positive sign that the body has kicked off an inflammatory response to start clearing out the unwanted fat cells.
Tenderness or Aching: The area might feel a bit sore to the touch for a few days after your session.
Bruising and Redness: It’s normal to see small bruises or some redness at the injection sites. These will fade naturally.
Numbness: You might experience a temporary feeling of numbness in the area, which typically subsides as the swelling goes down.
While much rarer, more significant risks like nerve injury or uneven results can exist. This is exactly why choosing a highly skilled and medically qualified practitioner is non-negotiable. An expert injector understands facial and body anatomy inside-out, ensuring the product is placed safely and effectively, which dramatically minimises these risks. Your safety is, and always will be, our number one priority.
Why Trust Charis Aesthetics for Your Treatment?
When it comes to something as personal as fat dissolving injections, choosing the right clinic isn’t just important—it’s everything. Your results, your safety, and your confidence all rest in the hands of your practitioner. At Charis Aesthetics, we've built our clinic on a foundation of genuine medical expertise and a deep-seated commitment to our clients. You'll feel supported and understood from the moment you walk through our door.
Our entire philosophy rejects the one-size-fits-all approach that’s all too common elsewhere. Your body is unique, so your treatment plan should be too. We take the time to conduct a thorough consultation, getting to know your anatomy, listening to what you want to achieve, and designing a plan that honours your natural shape.
A Foundation of Medical Excellence
Your safety is, and always will be, our top priority. Charis Aesthetics was founded by a Critical Care Registered Nurse with over eight years of NHS experience. This isn’t just a line on a certificate; it’s the bedrock of our practice. It shapes every decision we make, from our clinical hygiene standards to the precise way we administer treatments.
We only ever use premium, industry-approved products. This commitment to quality gives you peace of mind, knowing that every substance used has a proven track record for both safety and effectiveness. Our injection techniques are refined and meticulous, aimed at delivering beautiful, consistent results while keeping any risks to an absolute minimum.
At Charis Aesthetics, we blend medical science with an artistic eye. Our goal is to create subtle, natural-looking enhancements that boost your confidence, not change who you are. We want to help you look and feel like the very best version of yourself.
Personalised Care from Start to Finish
We believe exceptional care doesn't stop when you leave the treatment room. From your very first enquiry to your complimentary follow-up appointment, we foster a supportive and professional environment. You should feel comfortable asking any question that comes to mind, knowing you’re in safe hands.
Our holistic approach means we often look at the bigger picture. While we excel at body contouring with fat dissolving injections, we also understand how different treatments can work in harmony. Many of our clients find that combining a body treatment with a facial enhancement gives them a complete sense of rejuvenation. You can get a feel for our approach to facial aesthetics in our guide to [anti-wrinkle injections in Lancashire](https://www.charis-aesthetics.co.uk/anti-wrinkle-injections).
Choosing Charis Aesthetics means you’re choosing a partner for your aesthetic journey. We value your safety, respect your individuality, and are completely dedicated to achieving the beautiful, natural results you deserve.
Your Questions, Answered
It's completely normal to have questions when you're exploring a new aesthetic treatment. We believe feeling informed is the first step to feeling confident, so we’ve put together answers to some of the most common queries we hear about fat dissolving injections. Hopefully, this clears up any last-minute uncertainties you might have.
How Many Sessions Will I Need?
This is never a one-size-fits-all answer, as every treatment plan is built around you. For smaller, more delicate areas like that stubborn bit of fat under the chin, many of our clients are happy after just one to three sessions.
When we're working on larger areas with more dense fat, like the abdomen or thighs, a longer course is usually needed. It’s not uncommon to need up to eight sessions for these spots to get the smoothest, most contoured result. Think of it as a progressive process—each treatment builds on the last until we achieve that final, sculpted look.
What Do the Injections Feel Like?
Your comfort is our top priority. Most people describe the sensation as a very brief, mild sting or prickle at each injection site. We use incredibly fine needles, and the whole process is over and done with quite quickly.
To make sure you're as comfortable as possible, we can apply a topical numbing cream to the area beforehand. You might feel a little bit of a dull ache or tenderness afterwards, but the procedure itself is generally very well-tolerated.
How Long Until I See My Final Results?
Patience is definitely a virtue with this treatment. Your body needs time to do its natural clean-up work, flushing away the broken-down fat cells. You’ll likely start to see the first noticeable changes around four to six weeks after your first treatment.
The real magic happens over the next few months. Your final, optimal result will continue to emerge long after your last session, ensuring the reduction looks completely natural and blends seamlessly with your body’s unique contours.
Are the Results Permanent?
Yes, they are. The active ingredient in the injections, deoxycholic acid, literally destroys the fat cells it targets. Once your body eliminates them, they are gone for good and can’t grow back or store fat again.
It’s important to remember, though, that this doesn't make you immune to future weight gain. While the treated cells are gone forever, the remaining fat cells in other parts of your body can still expand. Maintaining a stable weight and a healthy lifestyle is the best way to protect your fantastic new shape.
Ready to see what’s possible? At Charis Aesthetics, we blend medical expertise with an artist’s eye to deliver results that are both beautiful and naturally you.



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