Non-Invasive Body Contouring Treatments Compared

Med spa menus use friendly names, but every device on this list belongs to a family with its own FDA clearance — and the cleared wording, not the menu name, is what says what the device can be used for.

Our body contouring guide covers the whole category, including the injectable; this page compares the devices one by one.

One expectation to carry through the list: the American Academy of Dermatology (AAD) describes the results of non-invasive fat reduction as subtle next to liposuction — its image is pants fitting a little looser.

• Fat freezing (cryolipolysis) — CoolSculpting. First cleared for fat reduction via De Novo DEN090002 on August 24, 2010, the current CoolSculpting Elite clearance (K233732, September 12, 2024) covers cold-assisted lipolysis of the upper arm, bra fat, back fat, banana roll, thigh, abdomen and flank at a BMI of 30 or less, and the under-chin and under-jawline areas at a BMI up to 46.2. Our CoolSculpting guide covers the device, its results studies and the PAH risk in depth.
• Heat-based laser fat reduction — SculpSure. SculpSure (Cynosure) uses a 1060 nm laser and was first cleared on May 15, 2015 (K150230) for non-invasive lipolysis of the flanks in people with a BMI of 30 or less; later clearances expanded the areas. What our research holds for SculpSure is the clearance wording rather than trial figures we can quote — a gap worth knowing when a menu quotes percentages.
• Low-level laser — "lipo laser". Devices such as Erchonia's Zerona are cleared only for the reduction of body circumference as a non-invasive aesthetic treatment — not for fat loss or weight loss. The first was cleared via De Novo DEN090008 (August 24, 2010), and a current model, the Zerona VZ8 (K243811, January 10, 2025), is cleared for over-the-counter distribution. The evidence base is thin: a 2025 review found only three randomized trials (160 participants), in which waist circumference fell 2.48 cm with the active device versus 0.635 cm with a control — varied protocols, long-term efficacy unclear. Our lipo laser guide explains the three treatments sold under that name.
• Muscle stimulation (HIFEM) — the devices marketed as Emsculpt. BTL's first HIFEM body device was cleared as a powered muscle stimulator on June 14, 2018 (K180813) to improve abdominal tone, strengthen the abdominal muscles and develop a firmer abdomen, and to strengthen, tone and firm the buttocks and thighs; later clearances added the arms (October 2018) and calves (July 2019), so the cleared muscle areas are the abdomen, buttocks, thighs, arms and calves. Those clearances cover muscle only — no fat-reduction indication. A follow-up MRI study that scanned 21 people about a year after treatment reported muscle thickening and no adverse events, with the authors' caveat that durability needs verification. See our Emsculpt guide for the studies in detail.
• Radiofrequency plus HIFEM — the family marketed as Emsculpt NEO. This family adds the fat-reduction clearances: cleared (K192224, December 5, 2019) for non-invasive lipolysis and circumference reduction of the abdomen, originally for skin types I to III, with later versions adding the thighs and skin types I to VI. A 2023 clearance covers the abdomen and thighs for skin types I to VI, the flanks for skin types I to IV, and the upper arms only for skin types II and III at a BMI of 30 or under. BTL says a session runs 30 minutes and the typical protocol is four sessions 5 to 10 days apart, for patients up to BMI 35; BTL advertises results as "25% muscle growth" and "30% fat reduction" — asterisked, study-based averages from the maker, not an expected result.
• Cellulite devices — Avéli, Cellfina and Resonic. These are cleared for the appearance of cellulite, not fat volume, and their data windows differ: Avéli (K212399, October 22, 2021) is cleared for temporary reduction in the appearance of cellulite on the buttocks and thighs of adult females, with data through three months; Cellfina is cleared for long-term improvement, with benefit shown through five years; and Resonic (K222629, September 2022), a rapid acoustic pulse device, is cleared for long-term improvement with data up to one year. Avéli and Cellfina are subcision devices — the closest this list comes to a minimally invasive procedure. One name you may still see is gone: QWO, the cellulite injectable approved in July 2020, whose maker announced in December 2022 it would cease production and sale, citing concerns about bruising and potential prolonged skin discoloration. Our cellulite treatment guide covers the devices and the evidence.

The families sort by what their clearances actually change.

The fat-reduction clearances name lipolysis — the breakdown of fat — or circumference: CoolSculpting's "cold-assisted lipolysis", SculpSure's "non-invasive lipolysis", the low-level lasers' "reduction of body circumference".

The muscle clearances name tone, strength and firmness, and the original Emsculpt-type clearances include no fat-reduction indication — among BTL's devices, the fat-reduction indications belong to the RF-plus-HIFEM family marketed as Emsculpt NEO.

The studies we cite measure accordingly — centimeters of waist for the low-level laser trials, muscle thickness on MRI for the Emsculpt follow-up study — not pounds on a scale.

That is the ruler to hold against any before-and-after gallery.

Skin tightening is a third goal that comes up in body contouring, and it is a separate device category rather than one of the families above: the AAD's non-invasive tightening tier names ultrasound, radiofrequency and certain lasers.

Our skin tightening guide covers that category.

Within this list, the one tightening-adjacent line is CoolSculpting's under-chin clearance, which also covers affecting the appearance of lax tissue.

A caveat that travels well: a device marketed for tightening can carry a clearance that says something else — RF microneedling devices such as Morpheus8, for example, are cleared for coagulation and contraction of soft tissue, not for "skin tightening".

Ask any provider which cleared indication covers the effect they are describing, and ask what the studies measured.

Start with what our research could not find: an Allergan list price per CoolSculpting cycle, a standard number of cycles per area, or a national average CoolSculpting price — none is published by Allergan, FDA or a professional body.

The one national figure we can cite is the American Society of Plastic Surgeons' average of $1,157 for nonsurgical fat reduction — a category that spans cryolipolysis, Kybella, radiofrequency and laser lipolysis.

Its limits matter: it is the average fee reported by ASPS member surgeons, not a med spa price, it excludes related expenses, and ASPS does not date the statistics page it presents as its latest (read October 2026).

Sessions are the number that turns into your total, and the sources state them in different voices.

The AAD's typical counts, given by technology rather than for any named device: cryolipolysis usually 2 sessions, ultrasound 1 to 3, and radiofrequency 4 to 10 — with results starting as early as 3 weeks and the full effect 3 to 6 months after the last treatment.

BTL says its typical Emsculpt NEO protocol is four 30-minute sessions 5 to 10 days apart.

For the low-level lasers, the trials behind the 2025 review used varied protocols, and for SculpSure we could not confirm a session count in the sources we checked — ask the provider what their plan assumes.

Apart from the AAD's typical counts and BTL's protocol quoted above, our research found no standard session plan for these devices — the written plan is the number to price.

Ask any quote which areas it covers, how many sessions it assumes, and what one more session would cost — then hold every quote to the same assumptions before you compare the totals.

"Best" is not a ranking we can hand you: no source we checked compares these devices head to head, and they are cleared for different jobs.

What the clearances and the professional bodies do settle is which goal each family addresses, and where the written limits sit.

• A fat bulge in a named area: the fat-freezing and heat-laser families — CoolSculpting's clearance names the upper arm, bra fat, back fat, banana roll, thigh, abdomen and flank at a BMI of 30 or less, plus the under-chin and under-jawline areas at a BMI up to 46.2; SculpSure's first clearance was the flanks at a BMI of 30 or less.
• A smaller circumference measurement: the low-level laser family — an aesthetic circumference claim, with waist changes measured in centimeters in small randomized trials.
• Muscle tone: the Emsculpt-type clearances for the abdomen, buttocks, thighs, arms and calves — muscle only, no fat indication.
• Fat and muscle in one course: the family marketed as Emsculpt NEO, where the skin-type limits vary by area and the maker's "up to BMI 35" line sits above the BMI 30-or-under limit written into the upper-arm clearance.
• The appearance of cellulite: the cellulite device family — cleared wording that differs on temporary versus long-term, with Avéli's and Cellfina's clearances limited to the buttocks and thighs of adult females.
• Loose skin: a skin tightening question — none of the fat clearances quoted above names lax skin, apart from CoolSculpting's under-chin line about the appearance of lax tissue.
• Overall weight: our research holds no weight-loss clearance for any of these devices — Allergan says CoolSculpting is not a weight-loss treatment, and the low-level laser devices are cleared only for reducing body circumference as an aesthetic treatment, not for fat loss or weight loss. That is a conversation for a licensed provider; our medical weight loss guide covers the prescription options.

Two candidacy limits are written down.

ASPS says people who are pregnant or breastfeeding should not have nonsurgical fat reduction procedures — its list covers cryolipolysis, injection lipolysis, radiofrequency and laser lipolysis.

And Allergan says people with cryoglobulinemia, cold agglutinin disease or paroxysmal cold hemoglobinuria should not be treated with CoolSculpting, and that patients should mention pregnancy, recent surgery, a pre-existing hernia or known sensitivities to their doctor.

Everything past that — whether your BMI, skin type, area and history fit a device's cleared wording, and which device makes sense for you — is a clinical judgment for the licensed provider you consult.

A cleared wording tells you what a device may be used for, never what result you will get.

No federal law defines a "med spa": whether one is regulated as a medical practice, and who may own it, is determined by each state's medical-practice, nursing and corporate-practice rules — AmSpa describes med spas as medical practices.

Before a first treatment, AmSpa's description of the standard is a "good faith exam": a physician, physician assistant or advanced practice nurse takes your medical history, performs an appropriate physical exam and creates the treatment order, and an RN may assist but cannot generate the order.

AmSpa suggests repeating that exam when treatments change, when your health changes, or at least annually — the association's rule of thumb, not a statute.

The cleared wording travels with you into the consultation: whatever device a clinic names, ask which clearance covers your area and your BMI, and ask who operates the device.

The checklist below is built for comparing quotes across devices.

Comparing quotes only works when they assume the same thing, so price each practice on identical terms — same area, same session count, same device — before weighing the totals.

Our how to choose a med spa guide covers credentials and red flags in depth, and the treatment decision itself belongs with you and a licensed provider.