Fat Reduction Injections

What is Fat Lipolysis Reduction Treatment?

Lipolysis (aka ‘fat dissolve’) injections are indicated for improvement in the appearance of moderate to severe convexity or fullness associated with submental fat, also called ‘double chin’ in adults. 

Although primarily used for ‘double chin’ reduction, the injections can also be used in other small ‘problem areas’, such as the lower abdomen, tops of the knees and backs or tops of the arms.


How Many Treatment Sessions Do I Need

Typically, two and sometimes three sessions of injections are required at least six weeks apart.

Occasionally, only a single session is required, usually when treating very small areas of fat. A decision on whether to proceed with further injections is made at your eight-weekly review, taking into consideration response rates to previous injections and your personal preference.

Larger areas (such as lower abdomen) may require as many as 5 treatments – it all depends on what results you’re hoping to achieve and how well you continue with any diet and exercise programmes you’re already undertaking.

Will the fat grow back

Once the fat in a given area has been dissolved with the lipolysis, it won’t grow back. However, if you put on weight, it will deposit in a different area of the body, potentially giving you a different ‘problem area’.

Best results are seen in patients who continue with their healthy lifestyle and avoid gaining large amounts of weight.

How do I get started

At your initial appointment, we will conduct a comprehensive medical history and explain the procedure to you. Allow one hour for this appointment, so we have time if you decide to proceed with the injections at this appointment.

We will put together a treatment plan with you, including suggested number of sessions and expected outcomes. Please feel free to discuss any concerns and ask any questions you may have at any time. We will ask you to sign a consent and give you any aftercare instructions.

After your treatment

Afterwards, the treated area may feel warm and will look redder than the surrounding skin.  Over the next day or so, it will start to swell significantly. This is nothing to worry about – it simply means the lipolysis injections are starting to work – however it is important to be prepared for it as it may be unsightly. Some people prefer to disguise the under neck swelling with scarves and long-necked clothing. It all just depends on what you feel comfortable with.

The swelling usually reduces within 5-7 days however there may be some mild bruising/discolouration of the skin for about a week afterwards. There may also be some residual numbness and/or reduced sensation over the skin where you were injected. This typically resolves by the time of the follow up appointment at six weeks.

You shouldn’t require pain relief following a lipolysis treatment however if you do feel uncomfortable, over-the-counter paracetamol (Panadol/Panamax) is fine to take.

The treated area continues to retract over the next several weeks until the final results are seen by the 8 week appointment.

At this time, we will generally proceed with your second treatment.

Further treatments may be necessary, however we will discuss this with you at each stage of your treatment plan.

What are the treatment risks

Every injection of any medication involves a certain amount of risk.  Below are some of the main risks & adverse reactions specific to the injection of lipolysis, reported as a percentage of patients during clinical studies 

  • Swelling – 87% 

Swelling is considered a desirable outcome as it means the product is beginning to work, however we still include it as a ‘risk’ as it may cause mild discomfort and an unsightly appearance.

  • Bruising (72%)
  • Numbness (66%)
  • Redness (27%)
  • Areas of hardness (23%)

These side eects typically resolve in days or weeks without treatment or intervention and do not commonly result in patients discontinuing treatment.

Others less common potential side eects include nerve injury, temporary trouble swallowing, skin ulceration, redundant skin (not observed in clinical trials however a possibility when fat is removed), incomplete fat removal  – up to 50% of neck fat is below the muscle, lipolysis injections do not target this fat so there may be some residual fullness.