Can Fat Dissolving Injections Work on the Stomach and Arms?

By LIV Clinic · Medically reviewed by Dr. Narathai Vichienkalayarut, M.D. · Published November 4, 2026

Fat dissolving injections are approved for one small area — and the bigger the area you want to treat, the more that matters.

Can fat dissolving injections work on the stomach and arms? They can reduce small, pinchable pockets of fat in some people, but use on the body is off-label: in the US, the only FDA-approved fat dissolving injection is approved for fat under the chin. Results on the stomach and arms are modest, need several sessions, and are not a substitute for weight loss or for loose skin treatment.

What fat dissolving injections are

How they work

Most fat dissolving injections use deoxycholic acid, sometimes with phosphatidylcholine. The Cleveland Clinic explains that deoxycholic acid destroys fat cells it is injected into, and that destroyed fat cells do not regenerate.

The approval picture

The US FDA states that Kybella (deoxycholic acid) is the only FDA-approved fat dissolving injection and that it has only been evaluated for use under the chin. The Cleveland Clinic notes other areas, including the abdomen, are treated off-label.

Can they work on the stomach and arms?

Small areas, modest change

On the lower stomach, love handles or upper arms, injections may soften a small, well-defined bulge over several sessions. They are not designed to remove large volumes, and the amount that can be treated per session is limited.

Why the stomach is harder

Much stomach fat sits deep around the organs (visceral fat), which injections cannot reach. Only the pinchable layer under the skin can be treated.

Who is — and is not — a good candidate

You are more likely to see a worthwhile change if:

• You are at or near a stable, healthy weight
• The area is a small, pinchable pocket rather than general fullness
• Your skin has good elasticity
• You can attend several sessions several weeks apart
• You understand the change will be modest and gradual

Injections are not suitable for weight loss, for loose or crepey skin, during pregnancy or breastfeeding, or where there is active skin infection in the area.

Body fat options compared

General comparison; which option suits you depends on an in-person assessment.

Risks to know about

Expected effects

Swelling, bruising, tenderness, numbness and firm areas are common after each session and usually settle over days to a few weeks.

Why the product matters

The FDA reports that unapproved fat dissolving products — some bought online or given by unlicensed people — have caused permanent scars, serious infections, skin deformities, cysts and deep, painful knots, including on the arms. Always ask what is being injected and who is injecting it.

Step-by-step: what treatment usually involves

A typical course, after a doctor confirms you are suitable:

1. Consultation, medical history and assessment of the area.
2. Photographs and marking of the exact area to be treated.
3. Cleansing and, if needed, numbing or cooling.
4. A series of small injections into the fat layer.
5. Cold compress and aftercare advice; expect swelling for several days.
6. Review after several weeks before deciding on another session.
7. Repeat only if the area is still responding and suitable.

Island timing and aftercare

Plan around swelling

Swelling and tenderness can make tight clothing or swimwear uncomfortable for a few days, so avoid booking right before a beach-heavy trip or a flight.

Keep it clean

Avoid swimming pools, the sea and saunas until injection points have closed, and follow your doctor’s advice on exercise.

Fat dissolving at LIV Clinic

Honest candidacy

At LIV Clinic on Koh Samui and Koh Phangan, Dr. Narathai assesses whether injections are realistic for your area — and will say so if another approach fits better. Body-area treatment availability varies — confirm with the clinic.

Read next

See our fat dissolving service, read about fat dissolving side effects, or book a consultation.

Frequently asked questions

Safety and consultation

Fat dissolving injection treatment is a medical injection procedure and carries some risk — common temporary effects include swelling, bruising, tenderness, numbness and firm areas, and less common reactions such as skin injury, infection or uneven contour are possible. Results vary from person to person, and no specific outcome can be promised. This article is general information, not medical advice.

At LIV Clinic, every treatment begins with an in-person assessment by Dr. Narathai Vichienkalayarut, M.D., who reviews your skin, medical history and goals before recommending a personalized plan. Book a consultation to find out whether this treatment suits you.