Treatment · Upper arms

Arm slimming treatment in Singapore for fat, loose skin or low tone

Heavy upper arms, or bat wings, are usually a mix of fat, loose skin and muscle tone. Here is how to tell which you have, the non-invasive options at SkinRev Lab for each, what they cost, and when a doctor or surgeon is the better route.

Written & medically reviewed by Dr Sin Yong · 16 October 2026

Quick answer

  • Upper-arm fullness comes from pinchable fat, loose skin, low muscle tone, or a mix of these. The right treatment depends on which one dominates.
  • At SkinRev Lab, a non-invasive aesthetic centre at CityLink Mall: SKINSHAPE or SKINUSHAPE for upper-arm fat (S$288 per 15 × 15 cm zone, first zone S$88), SKINTIGHT for loose, crepey skin (S$588 per zone) and SKINSCULPT for tone (S$288 per region, first region S$68). All before GST.
  • How many zones your arms need is measured at consultation, and the total is set out before you book.
  • Significant loose skin after major weight loss usually needs a surgical opinion. Doctor-performed options such as 4K Body Lift and fat freezing are done by Dr Sin Yong at IN Eternity Clinic and priced at consultation.

Causes

Fat, loose skin or low tone: why upper arms look heavy

Upper-arm fullness usually involves more than one thing. Fat on the back of the arm can stay even when overall weight comes down, because where the body stores and releases fat is largely set by genes and hormones.

The skin on the underside of the upper arm is relatively thin, with less structural support. As collagen declines with age, or after significant weight loss, it loses some of its ability to spring back, giving the softness and movement people call bat wings. That part is not fat at all, which is why some lean people still have it.

Muscle plays a part too. Stronger triceps improve the underlying shape, but exercise cannot burn fat from one chosen spot. Strong muscle under a persistent fat layer gives a firmer arm, not necessarily a slimmer one. A simple pinch test is a useful first guide:

  • You can pinch a substantial layer: fat is a significant part of it.
  • The tissue feels thin and moves easily, but there is little to pinch: loose skin dominates.
  • The arm is lean but lacks definition: muscle tone is the main factor.
Upper arm fat: why it is stubborn →

Matching the cause

Arm slimming options at SkinRev Lab

Each option below lists the upper arm as a treatment area. All are performed by our Aesthetic Specialists at CityLink Mall, and prices are per session, before GST.

Main causeOptionHow it worksPrice per sessionFirst visit
Pinchable fat, with mild laxitySKINSHAPEMiglou UHF microwave warms the fat layer and the skin above itS$288 per 15 × 15 cm zoneS$88 for one zone
Deeper, more compact fatSKINUSHAPEGuided ultrasound acts mechanically on fat cells; does not tighten skinS$288 per 15 × 15 cm zoneS$88 for one zone
Loose, crepey skinSKINTIGHT (body zone)Microplasma resurfaces the skin and prompts collagen renewalS$588 per 15 × 15 cm zoneNo published first-visit rate
Low muscle toneSKINSCULPT (underarms region)An electromagnetic field triggers strong muscle contractionsS$288 per regionS$68 for one region
Body contouring in Singapore: all options compared →

In detail

What each option does for the upper arm

Many arm plans combine two of these, such as a contouring treatment for fat with SKINTIGHT for the skin, because reducing volume without supporting the skin can make slackness more visible.

  • SKINSHAPE treats fat along the back of the upper arm and warms the skin above it, so it suits arms where fat and mild laxity sit together. Each zone takes about 30 minutes and usually feels like a comfortable warmth.
  • SKINUSHAPE suits a deeper or denser pocket of upper-arm fat that responds slowly to heat. It usually feels warm, with a mild buzzing. Because it does not tighten skin, it is paired with SKINTIGHT where laxity is part of the picture.
  • SKINTIGHT is the option when the skin itself is the problem: thin, crepey inner-arm skin that moves easily. It feels warm and prickly, numbing cream can be applied first, and tightening settings usually leave mild redness for a few hours. Sessions take about 30 minutes.
  • SKINSCULPT works on muscle rather than fat or skin. Its underarms region is used for upper-arm firmness and definition, with you fully clothed, in about 30 minutes. Mild muscle soreness the next day is possible.
SKINSHAPE microwave body contouring →SKINUSHAPE ultrasound body contouring →SKINTIGHT skin tightening →SKINSCULPT muscle strengthening →

Prices

How much arm slimming costs at SkinRev Lab

Body treatments are priced per 15 × 15 cm zone or per region, per session. How many zones an upper arm needs depends on your arm and the area to be treated, so your Aesthetic Specialist measures each arm and confirms the number of zones and the total at consultation, before anything is booked.

Standard rates, before GST: SKINSHAPE S$288 per zone, SKINUSHAPE S$288 per zone, SKINTIGHT S$588 per zone and SKINSCULPT S$288 per region. First-visit rates apply once per new client, on the first session: S$88 for one SKINSHAPE or SKINUSHAPE zone, or S$68 for one SKINSCULPT region.

Arm treatments are planned as a course spaced a few weeks apart, and the number of sessions depends on the area and your goal. Ask for the course total rather than the price of one visit.

SkinRev Lab price list →

What to expect

Sessions, results and keeping them

  • Assessment comes first: a pinch test and a look at the skin, so the plan matches what your arms are made of.
  • Most clients go back to work the same day after any of these four treatments.
  • Change builds gradually. Treated fat cells are cleared by the body over several weeks, and collagen changes in the skin take longer.
  • Results vary with your starting point, the number of sessions and your habits in between. Reviews of non-invasive contouring describe effects as mild to moderate (Alizadeh 2016), and arm contouring is not weight loss.
  • Remaining fat cells can still enlarge if you gain weight, so a stable weight and continued strength training help keep the result.

Doctor or surgeon

When a doctor, or surgery, is the better route

Significant loose skin after major weight loss usually needs surgical removal, and no energy-based treatment replaces that. We will say so at assessment rather than sell sessions.

For heavier upper arms, or where firmer skin matters as much as a smaller contour, doctor-performed options are available at IN Eternity Clinic, 9 Scotts Road, #12-01 Pacific Plaza, beside Orchard MRT. They are performed by Dr Sin Yong and priced at consultation by the clinic. WhatsApp +65 8815 3008.

  • 4K Body Lift: radiofrequency through insulated microneedles, treating a compact pocket of fat and the skin over it in the same visit. Upper arms are one of its common areas. Expect tenderness and pinpoint marks for some days, and possible bruising.
  • Fat freezing: controlled cooling of a distinct, pinchable bulge, including on the upper arms, with change over two to three months. It does not tighten loose skin and may make laxity look more obvious.
  • Onda Pro: microwave energy absorbed mainly by fat while the skin surface is cooled, for pinchable fat on areas including the arms.
  • See a doctor rather than booking contouring if there is a lump that feels different from the surrounding fat, is growing or is tender.
4K Body Lift at IN Eternity Clinic →Fat freezing at IN Eternity Clinic →Stubborn fat: non-invasive and medical options →

Sources

References & sources

  1. Alizadeh Z, Halabchi F, Mazaheri R, Abolhasani M, Tabesh M. Review of the mechanisms and effects of noninvasive body contouring devices on cellulite and subcutaneous fat. Int J Endocrinol Metab. 2016;14(4):e36727. PMID 28123436.

Common questions

Your questions,
answered

How much is arm slimming at SkinRev Lab?

SKINSHAPE and SKINUSHAPE are S$288 per 15 × 15 cm zone, SKINTIGHT is S$588 per zone and SKINSCULPT is S$288 per region, per session before GST. The number of zones per arm is measured at consultation. New clients can try one SKINSHAPE or SKINUSHAPE zone at S$88, or one SKINSCULPT region at S$68.

Can you get rid of bat wings without surgery?

Meaningful improvement is possible without surgery when the issue is moderate fat with mild to moderate laxity: contouring reduces volume while skin tightening firms the skin. Significant loose skin after major weight loss usually needs surgical removal, and we will tell you if that is the case.

Why don't arm exercises slim my arms?

Exercise cannot burn fat from one chosen spot; fat is mobilised across the whole body. Triceps work builds the muscle underneath, which firms the arm, but a persistent fat layer stays unless it is reduced in another way.

Should I choose SKINSHAPE or SKINUSHAPE for arm fat?

SKINSHAPE suits fat that comes with mild laxity, because it warms the skin too. SKINUSHAPE suits a deeper, denser pocket of fat and does not tighten skin. Both are S$288 per zone, and our Aesthetic Specialist will advise which suits your arms.

How many sessions will my arms need?

Arm treatments are planned as a course spaced a few weeks apart. The number depends on how much fat or laxity there is and on your goal, and it is planned at your assessment. Results vary from person to person.

Will arm fat come back after treatment?

Treated fat cells are cleared by the body, but the remaining fat cells can still enlarge if you gain weight. Keeping your weight stable and staying active help maintain the new contour.

Is there recovery time after arm treatments?

Most clients return to work the same day after any of the four SkinRev Lab options. SKINTIGHT tightening settings usually leave mild redness for a few hours, and SKINSCULPT can cause mild muscle soreness the next day. Doctor-performed options such as 4K Body Lift involve more recovery.

Compare & plan

Body Contouring Singapore: Options & Prices →