A double chin, or submental fullness, is a concern shared by many.
It can result from genetics, ageing, or a gradual build-up of fat in the lower face. If you're looking to reduce this without undergoing surgery, non-surgical double chin treatment using High-Intensity Focused Ultrasound (HIFU) is worth exploring.
HIFU targets both fat and loose skin under the chin to help improve contour and definition. You can learn more about how this works through this page on how HIFU targets fat under the chin.
A double chin forms due to two main factors: fat accumulation and skin laxity. It’s not always caused by weight gain. In many cases, it’s linked to hereditary traits or the natural ageing process, where collagen breaks down and the skin loses elasticity.
This makes treatment more complex. Reducing fat alone may not address the full issue. If your skin has also lost firmness, a dual approach is necessary.
How HIFU Works Under the Chin
Source: Unsplash.
HIFU is designed to reach different layers of tissue without affecting the skin’s surface. During treatment, ultrasound energy penetrates the fat layer and the connective tissues that support your facial structure.
HIFU under the chin delivers three key effects:
It heats fat cells, triggering a natural breakdown process.
It causes a tightening effect in the deeper facial layers.
It stimulates collagen production, which firms the skin over time.
By working on both fat and skin support, HIFU helps to create a slimmer, more defined jawline gradually. According to MedicalNewsToday, HIFU is particularly suited for smaller treatment areas like the chin and jaw.
Comparing HIFU to Other Chin Treatments
HIFU is often compared to other options such as injectables or surgical procedures. Here’s a breakdown:
Treatment
Invasiveness
Fat Reduction
Skin Tightening
Downtime
Sessions
HIFU
Non-invasive
Yes
Yes
None
1–2 yearly
Kybella
Minimally invasive
Yes
No
Swelling
2–4 injections
Radiofrequency
Non-invasive
Mild
Yes
None
Ongoing
Liposuction
Surgical
Yes
No
1 week or more
One-time
Unlike procedures that focus on fat or tightening alone, HIFU combines both benefits into a single session with no recovery time.
Source: Depositphotos.
Is HIFU Right for You?
HIFU is suitable if:
You have a mild to moderate double chin
Your skin is slightly loose but not severely sagging
You want a gradual and natural-looking improvement
You are not ready for surgery or injectables
It is not intended for significant fat removal or advanced skin laxity. A consultation will help determine if your skin structure and goals align with the treatment.
When Will You See Results?
Source: Depositphotos.
Results from HIFU appear gradually as your body produces new collagen and clears treated fat cells. Most people notice changes within four to eight weeks. The full benefit continues to build over three to six months.
A study published by PubMed Central notes that this method is effective for lifting and contouring targeted facial zones, particularly when ultrasound energy is delivered at the correct depth.
With proper care, results can last up to a year or longer. Staying consistent with skincare, hydration, and sun protection can help extend the effects.
How Often Do You Need Chin-Specific HIFU?
For the chin and jawline, a single session is often enough for mild cases. In some instances, a second treatment may be recommended after six to nine months to maximise collagen production and fat reduction.
After that, annual maintenance is typically all you need to keep your results stable.
Conclusion
Source: Unsplash.
If you are looking to tighten sagging skin under the chin naturally and reduce excess fullness without surgery, HIFU may be a suitable option. It works with your body's own collagen-building process while also helping to refine the jawline.
By treating both structural support and superficial skin quality, HIFU offers a balanced, low-risk method to achieve visible improvements over time, without disrupting your daily routine.
Disclaimer:
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