| Modalities | Cryolipolysis, Radiofrequency (RF), HIFEM / EMMS, Focused Ultrasound (LIFU), Microwave, Photobiomodulation |
| Primary Indication | Non-invasive localized subcutaneous fat reduction, muscle toning, skin laxity improvement |
| Access | Clinical / Medical Aesthetic Practice |
| Typical Protocol | 1–8 sessions depending on modality (multi-session weekly protocols) |
| Safety Profile | High (Self-limiting erythema, edema; rare risk of paradoxical adipose hyperplasia) |
| Fat Reduction Range | 20% to 35% subcutaneous fat layer thickness reduction |
Non-surgical body contouring encompasses a rapidly evolving suite of energy-based devices and non-invasive modalities designed to selectively target subcutaneous adipose tissue, stimulate muscle hypertrophy, and promote dermal remodeling [1][2][3]. Utilizing physical mechanisms such as controlled cryo-induced apoptosis, thermal radiofrequency lipolysis, high-intensity focused electromagnetic field muscle stimulation, and focused ultrasound cavitation, these clinical interventions offer localized volume reduction without the surgical morbidity, anesthesia requirements, or recovery downtime associated with traditional lipoplasty [4][5][6] (see Lasers, IPL, and Energy Devices).
Across clinical cohorts, non-surgical body contouring technologies consistently demonstrate the ability to achieve a 20% to 35% reduction in subcutaneous fat-layer thickness within treated areas [3:1][7][2:1]. These clinical outcomes, however, must be clearly distinguished from systemic weight loss, as metabolic and volumetric modifications remain strictly localized and do not alter visceral adiposity or systemic lipid profiles [8][9][10].
Non-surgical body contouring devices provide targeted aesthetic and tissue-remodeling benefits through non-invasive physical modalities (see Appearance and Aesthetic Longevity).
| Outcome / Goal | Effect* | Consistency** | Evidence Quality | Trials*** | Notes (population, duration, dose) |
|---|---|---|---|---|---|
| Subcutaneous Adipose Thickness (SAT) | High | High | >20 Trials | 20% to 35% localized reduction in SAT thickness post-treatment across various multi-session protocols [3:4][7:3][2:7][18]. | |
| Localized Circumference | High | High | >15 Trials | Significant reductions in abdominal, flank, thigh, and arm circumferences after a series of weekly treatments [14:1][5:6][13:4][7:4]. | |
| Skeletal Muscle Definition | Moderate | High | 2 RCTs | 21.5% to 24.2% increase in rectus abdominis muscle thickness after 4 synchronized RF+HIFEM sessions [1:4][2:8]. | |
| Dermal Collagen Density | High | Moderate | >10 Trials | 6% to 12% increase in dermal echogenicity and marked improvement in skin laxity following RF protocols [19][18:1][13:5]. | |
| Systemic Body Weight / BMI | High | High | >15 Trials | No clinically or statistically significant changes in body weight or BMI are observed, confirming local fat remodeling only [8:2][10:3][20]. | |
| Serum Lipids / Liver Enzymes | High | High | 2 Trials | Multiple same-day treatment cycles do not alter serum lipids (cholesterol, triglycerides) or liver function (AST, ALT) [9:2][21]. |
e="[dir][mag][impact]" where dir = u|d|e|q, mag = 0|1|2|3, impact = p|n|x. Examples: ↓↓ (p) -> <effect e="d2p"></effect>, = (x) -> <effect e="e0x"></effect>. Just use the tag directly without plain text.Cryolipolysis represents the most extensively researched non-invasive fat-reduction method [22][11:1]. It utilizes the biological principle that adipocytes are significantly more sensitive to cold-induced damage than surrounding tissues like nerves, vessels, or skin [22:1][11:2].
A landmark multi-center prospective trial evaluated the efficacy of a flat-cup vacuum applicator (CoolFit) for inner thigh treatment [5:7]. Forty-five subjects underwent bilateral treatments (60-minute cycle, Cooling Intensity Factor 41.6), resulting in a mean fat layer reduction of 2.8 mm via ultrasound and a 0.9 cm circumference reduction at 16 weeks [5:8]. Standardized photographic reviews by blinded physicians correctly identified baseline images in 91% of cases, and patient satisfaction was high, with 93% reporting favorable outcomes [5:9]. Similar results have been shown on the arms and inner thighs, where Wanitphakdeedecha et al. (2015) reported significant circumferential reductions of 0.41 cm at 3 months and 0.72 cm at 6 months [14:2].
For the flanks, overlapping double-cycle treatments (two sequential 60-minute cycles per flank) demonstrated a 43% aesthetic improvement as rated by blinded physician reviewers, with mild, self-limiting side effects (erythema, bruising, localized numbness) [4:4]. Ultrasound assessments by Meyer et al. (2017) confirmed highly significant localized perimeter and fat thickness reductions two months following a single 60-minute abdominal cryolipolysis session (-7°C, 30 kPa suction) [10:4].
In a therapeutic Level I randomized split-body trial, Dahmann et al. (2023) investigated whether post-cryolipolysis active heating (applying a mud pack immediately post-treatment) could alter efficacy or side effects [15:1]. While post-treatment heating significantly reduced transient side effects (edema, erythema, and hypesthesia), it significantly degraded fat-reduction efficacy—reducing local adipose layer thinning from 14.1% in the control (unheated) group to just 9.6% in the heated group [15:2]. Consequently, post-treatment active heating should be strictly avoided to maximize adipocyte apoptotic clearing [15:3].
CRYOLIPOLYSIS CELLULAR PATHWAY
Controlled Cooling (-7°C to -11°C) [60 min Session]
│
▼
Selective Lipid Crystallization (Intra-Adipocyte)
│
▼
Cold-Induced Apoptosis [0 to 3 days]
│
▼
Infiltration of Macrophages [2 to 4 weeks]
│
▼
Phagocytic Clearing of Adipocytes [8 to 16 weeks]
│
▼
Subcutaneous Fat Layer Reduction (20% to 35% Thinning)
Radiofrequency devices employ high-frequency electrical currents to generate deep thermal energy inside tissues [12:4][16:2]. The thermal response is determined by frequency and tissue impedance: 2 MHz monopolar RF currents penetrate deeply into the subcutaneous adipose layer, whereas higher frequencies (such as 6.78 MHz) generate more localized heating along superficial fibrous septa [3:5][16:3].
A multi-site, single-blinded, prospective clinical trial evaluated a monopolar 2 MHz RF device for abdominal and flank fat reduction [3:6]. Subjects received a single, non-contact 15-minute treatment, which yielded a significant reduction in fat thickness at 12 weeks: an average of 24% in the abdomen and 22% in the flanks as measured by diagnostic ultrasound [3:7]. Investigating high-frequency diathermy, Santos et al. (2025a) conducted a clinical trial on thigh remodeling using the Symmed RF device [18:2]. Following eight sessions (performed every 72 to 96 hours), subjects demonstrated a 20% reduction in subcutaneous fat thickness, a 3% decrease in overall thigh circumference, and a 6% increase in dermal echogenicity—a key clinical marker of collagen remodeling and tissue organization [18:3].
These findings were corroborated in an abdominal and flank study utilizing the same Symmed RF system, which reported a 9% reduction in abdominal fat thickness and a 12% increase in dermal echogenicity after eight multi-session treatments [13:6]. Additionally, Fajkošová et al. (2014) evaluated contactless deep-tissue selective RF (Vanquish, 200W) in 40 healthy subjects over four weekly 30-minute sessions [17:1]. Subjects experienced a highly significant average abdominal circumference reduction of 4.93 cm, with non-responders (0–1 cm decrease) limited to individuals with a very thin baseline subcutaneous fat layer [17:2].
Dual-frequency protocols combining 2 MHz and 6.78 MHz monopolar RF currents optimize these responses [16:4]. Computational finite-element modeling and porcine histologic analyses showed that dual-frequency applications create pronounced thermal reactions at the dermosubcutaneous junction, stimulating extensive extracellular matrix (collagen and elastin) remodeling across both the dermis and fibrous septa while safely preserving adipocyte viability in non-lipolytic rejuvenation zones [16:5].
A major therapeutic advancement is the simultaneous delivery of synchronized radiofrequency heating and high-intensity focused electromagnetic (HIFEM) stimulation through a single applicator, addressing both subcutaneous fat and underlying skeletal muscle [1:5][2:9].
In the first sham-controlled randomized clinical trial, Samuels et al. (2022) evaluated 72 patients randomized to active or sham synchronized RF+HIFEM treatments (three weekly sessions of 30 minutes) on the abdomen [2:10]. Active treatments were delivered at the maximum tolerable thermal and electromagnetic intensity, while the sham group received 5% energy levels [2:11]. At 3 months post-treatment, active subjects achieved a 28.3% reduction in subcutaneous adipose thickness and a 24.2% increase in rectus abdominis muscle thickness [2:12]. These structural improvements were maintained at the 6-month follow-up, while the sham group showed no significant tissue modifications [2:13].
A separate clinical trial by Novak et al. (2022) evaluated the Transform device (which combines RF and electrical muscle stimulation) [12:5]. After three sessions, subjects demonstrated a significant ultrasound-verified fat thickness reduction of 5.40 mm and a caliper pinch reduction of 6.07 mm at 3 months, alongside high subjective patient satisfaction and excellent safety parameters [12:6].
Furthermore, a comparative trial by Kilmer et al. (2020) evaluated three distinct cohorts: EMMS alone, Cryolipolysis alone, and Cryolipolysis + EMMS in combination [1:6]. Multimodal combining of cryolipolysis and EMMS yielded the greatest mean Global Aesthetic Improvement Scale (GAIS) scores, the highest circumferential reduction measurements, and the largest increases in subjective body satisfaction, confirming that addressing both adipose and muscular structures simultaneously produces synergistic contouring outcomes [1:7].
Low-intensity focused ultrasound (LIFU) provides precise mechanical and thermal disruption of targeted adipocytes [7:5]. Pre-heating subcutaneous tissues with radiofrequency energy raises adipose tissue temperatures, lowering the physical threshold required for mechanical disruption by subsequent ultrasound waves [7:6][23].
In a prospective clinical trial evaluating abdominal contouring and skin laxity, Wu et al. (2025) enrolled 20 women (aged 28–42 years) with mild-to-moderate abdominal skin laxity [7:7]. Subjects received combined LIFU and RF treatments administered in six sessions over 6 weeks [7:8]. Diagnostic ultrasound and computed tomography (CT) scans showed that following a six-week protocol, subjects achieved significant decreases in subcutaneous adipose tissue thickness:
These structural fat-layer reductions translated to statistically significant abdominal circumference decreases (ranging from 2.08 to 3.03 cm) and a 9.17% increase in dermal thickness [7:12]. High-speed photographic monitoring and hematologic panels confirmed excellent systemic safety [7:13].
Long-term stability of these outcomes was tracked by Chang et al. (2016) in a cohort of Asian subjects receiving three biweekly combination therapies [20:1]. Standardized clinical assessments at 1 month and 1 year post-treatment demonstrated that abdominal circumference and fat reductions remained fully stable at 1 year, provided that subjects maintained a constant body weight (mean weight change of only 0.1 ± 1.2 kg, p = 0.513) [20:2]. This highlights the critical clinical concept that local adipocyte destruction is permanent, but remaining adipocytes retain the capacity for hypertrophic lipid storage if systemic energy balance becomes positive [20:3].
Alternative energy modalities and triple-therapy combinations have further expanded clinical efficacy.
Non-surgical body contouring devices utilize distinct biophysical pathways to induce adipocyte death or extracellular matrix remodeling.
┌────────────────────────────────────────────────────────────────────────┐
│ BIOPHYSICAL MECHANISMS OF ACTION │
├─────────────────┬──────────────────────────────────────────────────────┤
│ Cryolipolysis │ Cold-induced crystallization -> Caspase-3 activation │
│ │ -> Adipocyte apoptosis -> Macrophage phagocytosis │
├─────────────────┼──────────────────────────────────────────────────────┤
│ Radiofrequency │ Alternating current -> Ionic oscillation -> Friction │
│ │ -> Heat (>42°C-45°C) -> Thermal lipolysis/tightening │
├─────────────────┼──────────────────────────────────────────────────────┤
│ HIFEM / EMMS │ Alternating magnetic fields -> Motor nerve depolar │
│ │ -> Supramaximal contractions -> Muscle hypertrophy │
├─────────────────┼──────────────────────────────────────────────────────┤
│ Focused Ultra. │ Focused acoustic waves -> Mechanical shear/cavitat. │
│ (LIFU / HIFU) │ -> Direct membrane rupture -> Lymphatic lipid clear │
└─────────────────┴──────────────────────────────────────────────────────┘
Subcutaneous adipocytes contain high concentrations of saturated fatty acids, making them uniquely susceptible to cold-induced crystallization at temperatures well above the freezing point of water [22:2][11:3]. Controlled cooling to temperatures between -7°C and -11°C induces lipid crystallization within the adipocyte, which initiates a cascade of cellular stress, including mitochondrial dysfunction and the activation of Caspase-3 and Caspase-9 apoptotic pathways [22:3][15:4].
Over the subsequent 2 to 4 weeks, an inflammatory infiltrate consisting of macrophages, neutrophils, and other histiocytes envelops the apoptotic adipocytes [22:4][6:3]. Phagocytosis of the lipid debris occurs progressively, and the destroyed cells are cleared through the lymphatic system over a period of 8 to 16 weeks, resulting in a gradual thinning of the subcutaneous fat layer [5:10][15:5].
Radiofrequency (RF) diathermy devices deliver alternating currents that pass through tissue layers, causing rapid oscillation of charged ions and water molecules [16:6]. This ionic movement generates thermal energy through molecular friction [16:7].
Subcutaneous fat has a significantly higher electrical impedance (resistance) than dermis or muscle tissue, causing it to heat rapidly when exposed to RF currents [3:8][16:8]. Maintaining tissue temperatures between 42°C and 45°C for 15 to 30 minutes induces thermal lipolysis, characterized by adipocyte membrane injury and enzymatic lipid degradation [3:9][18:4].
Concurrently, heating the overlying dermis to 40°C–43°C denatures the intermolecular hydrogen bonds of triple-helix collagen fibers, causing immediate fiber contraction [19:1][13:7]. This thermal injury triggers the release of heat shock proteins (HSP), activating dermal fibroblasts to synthesize new Type I and Type III collagen and elastin fibers, increasing skin elasticity and density [19:2][16:9].
High-Intensity Focused Electromagnetic (HIFEM) fields penetrate non-invasively through the skin and subcutaneous fat to reach skeletal muscle layers [1:8][2:14]. The rapidly alternating magnetic fields induce electrical currents that depolarize motor neurons in the target muscle [1:9][2:15].
This depolarization forces the muscle to undergo supramaximal contractions, which are physiologically impossible to achieve voluntarily [1:10][2:16]. The extreme physical workload triggers rapid myofibrillar protein synthesis, myofibrillar hypertrophy, and muscle fiber hyperplasia [2:17].
To meet the high metabolic demand of these supramaximal contractions, adjacent subcutaneous adipocytes undergo intense lipolysis, releasing free fatty acids (FFAs) and contributing to localized adipose thinning overlying the hypertrophied muscle [1:11][2:18].
Understanding the clinical limitations, practical realities, and novel applications of body contouring technologies is essential for appropriate patient selection and setting realistic expectations.
Early pre-clinical animal models of non-surgical body contouring often reported rapid and dramatic fat layer clearance. However, human adipose tissue has a different vascular architecture and higher concentrations of fibrous septa, which distribute thermal and mechanical stress [16:10].
In humans, these procedures are strictly contouring interventions rather than weight-reduction tools. While a single cryolipolysis or RF protocol can reduce subcutaneous fat thickness by 20% to 35%, this rarely translates to more than a 2 to 5 cm decrease in waist or thigh circumference [14:3][13:8][3:10]. Patients with a high baseline Body Mass Index (BMI > 30 kg/m2) or significant visceral adiposity (which lies beneath the muscular wall and cannot be reached by these devices) are poor candidates and typically experience minimal aesthetic improvement [8:3][10:5][6:4].
While body contouring devices are primarily marketed for aesthetic concerns, innovative clinical research is expanding their use into reconstructive surgery [26]. Bulky fasciocutaneous free flaps, such as the anterolateral thigh (ALT) flap used in extremity or head-and-neck reconstructions, often require secondary thinning to improve function and aesthetics [26:1]. Traditional surgical refinement requires liposuction or open surgical excision, which carries risks of vascular compromise and wound healing complications [26:2].
Nagel et al. (2023) conducted a feasibility trial evaluating cryolipolysis (60 minutes, -9°C) as a non-invasive alternative for ALT flap refinement in 10 patients [26:3]. At 12 weeks post-treatment, subjects achieved a significant 1.8 cm reduction in extremity circumference and a 7.7 mm reduction in subcutaneous flap thickness, with high patient satisfaction (90%) and a significantly shorter hospital stay compared to surgical flap contouring [26:4]. This pilot study highlights the safety of cryolipolysis in microvascularly reconstructed tissue, demonstrating that controlled cooling does not compromise free flap viability [26:5].
In modern clinical practice, the carbon footprint of medical and aesthetic energy-based devices is an emerging consideration [27]. A life cycle assessment (LCA) conducted by Karakoyun et al. (2025) evaluated 12 common dermatologic and aesthetic devices, calculating their carbon footprint per session based on power consumption, clinical session duration, and national grid carbon intensity (0.45 kg CO2e/kWh) [27:1].
High-energy aesthetic lasers and body-shaping systems produced the highest emissions, ranging from 0.30 to 0.70 kg CO2e per session, whereas low-energy modalities (such as LED phototherapy) emitted less than 0.01 kg CO2e [27:2]. Radiofrequency microneedling and electromagnetic muscle stimulation (EMS/HIFEM) systems produced moderate emissions, ranging between 0.10 and 0.70 kg CO2e per session depending on device power ratings and protocol lengths [27:3]. To support greener clinical practices, providers are encouraged to optimize session times, select energy-efficient diode-based systems, and integrate power-saving standby protocols [27:4].
| Feature / Metric | Cryolipolysis [5:11] | Radiofrequency (RF) [3:11] | Synchronized RF + HIFEM [2:19] | Focused Ultrasound (LIFU) [7:14] |
|---|---|---|---|---|
| Primary Biological Effect | Adipocyte apoptosis [5:12] | Thermal lipolysis & neocollagenesis [13:9] | Adipose lipolysis & myofibrillar hypertrophy [2:20] | Mechanical cavitation & cell rupture [7:15] |
| Tissue Targets | Subcutaneous fat only [5:13] | Subcutaneous fat & dermis [13:10] | Subcutaneous fat & skeletal muscle [2:21] | Deep subcutaneous fat & dermis [7:16] |
| Typical Session Duration | 35 to 60 minutes per cycle [4:5] | 15 to 45 minutes [3:12] | 30 minutes [2:22] | 30 to 60 minutes [7:17] |
| Optimal Session Frequency | 1 to 2 sessions (8-12 weeks apart) [4:6] | 4 to 8 sessions (weekly) [13:11] | 3 to 4 sessions (weekly) [2:23] | 3 to 6 sessions (biweekly/weekly) [23:1] |
| Expected Local SAT Thinning | 20% to 25% reduction [10:6][15:6] | 20% to 24% reduction [3:13][18:5] | 28.3% reduction [2:24] | 23.2% to 35.4% reduction [7:18] |
| Primary Dermal Remodeling | None [22:5] | High (6% to 12% echogenicity increase) [13:12] | Moderate [12:7] | Moderate (9.1% dermal thickening) [7:19] |
| Common Mild Adverse Events | Localized numbness, bruising, erythema [11:4] | Transient erythema, mild thermal discomfort [17:3] | Muscle soreness, transient erythema [2:25] | Localized tenderness, transient wheals [23:2] |
Across all energy-based body contouring modalities, mild and transient adverse events (AEs) are common but self-limiting [22:6][11:5].
While non-surgical modalities have a favorable safety profile compared to surgical liposuction, serious adverse events can occur and must be thoroughly monitored [22:8][11:7].
A critical clinical concern regarding non-invasive fat-reduction technologies is whether the rapid destruction of localized subcutaneous adipocytes causes a surge in circulating lipids, potentially impacting liver function or cardiovascular health [21:2][9:3].
This clinical question was addressed in a prospective study where subjects underwent multiple same-day cryolipolysis cycles treating both the lower abdomen and bilateral flanks simultaneously [9:4]. Serum lipid panels (including total cholesterol, triglycerides, HDL, and LDL) and liver function markers (including AST, ALT, alkaline phosphatase, and total bilirubin) were measured at baseline, 1 week, 4 weeks, and 12 weeks post-treatment [9:5]. The trial demonstrated no clinically or statistically significant changes in any serum lipid or liver function marker at any post-treatment interval [9:6].
The slow, macrophage-mediated clearance of apoptotic adipocytes over 8 to 16 weeks prevents acute lipid overloading of the lymphatic system and liver, confirming the systemic metabolic safety of multi-site non-invasive contouring treatments [9:7][21:3].
Non-surgical contouring is a non-invasive, outpatient modality requiring no anesthesia, incisions, or recovery downtime [5:15][9:8]. However, its volumetric capacity is significantly lower. While surgical liposuction can remove liters of subcutaneous fat in a single session, non-surgical devices typically achieve a 20% to 35% reduction in localized subcutaneous fat-layer thickness (equivalent to a 2 to 5 mm reduction in fat thickness per protocol) [3:15][7:20][2:26]. Non-surgical options are designed for localized contouring in individuals near their target body weight, not for large-volume fat removal [8:4][10:7].
Yes, energy-based devices that induce adipocyte apoptosis (cryolipolysis) or direct cell membrane rupture (focused ultrasound) cause permanent destruction of localized fat cells [5:16][7:21]. Once cleared by macrophages and the lymphatic system, these adipocytes do not regenerate [22:15][15:7]. However, the remaining adipocytes in the treated area and adjacent depots retain the capacity for hypertrophy (lipid storage) [20:4]. Longitudinal follow-up trials demonstrate that contouring results remain stable at 1 year only if the patient maintains a stable body weight [20:5].
Paradoxical Adipose Hyperplasia (PAH) is a rare, delayed complication of cryolipolysis where the treated subcutaneous fat tissue paradoxically enlarges and hardens into a firm, painless mass matching the applicator's shape [22:16][11:12]. It occurs 2 to 6 months post-treatment and does not resolve spontaneously [22:17]. Corrective treatment is strictly surgical (liposuction or excision) and must be delayed until the tissue stabilizes [22:18]. Published incidence rates vary widely, with early manufacturer-reported rates around 1 in 4,000 cycles, while some independent clinical cohorts suggest a higher incidence of up to 1 in 100 to 1 in 500 cycles [22:19][11:13].
No. While applying local heat (such as mud packs or warm compresses) immediately after a cryolipolysis session can improve comfort and reduce common transient side effects like edema and erythema, it significantly decreases the fat-reduction efficacy of the treatment [15:8]. A randomized split-body trial showed that post-treatment heating degraded local fat layer reduction from 14.1% down to 9.6% [15:9]. Active heating immediately following cryolipolysis should be avoided to allow the cold-induced apoptotic cascade to proceed fully [15:10].
Kilmer SL, Cox SE, Zelickson BD. Feasibility Study of Electromagnetic Muscle Stimulation and Cryolipolysis for Abdominal Contouring. Dermatologic Surgery. 2020 Oct;46 Suppl 1:S14-S21. https://pubmed.ncbi.nlm.nih.gov/32976168/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Samuels JB, Katz B, Weiss RA. Radiofrequency Heating and High-Intensity Focused Electromagnetic Treatment Delivered Simultaneously: The First Sham-Controlled Randomized Trial. Plastic and Reconstructive Surgery. 2022 May 1;149(5):1085-1094. https://pubmed.ncbi.nlm.nih.gov/35259147/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Somenek MT, Ronan SJ, Pittman TA. A Multi-Site, Single-Blinded, Prospective Pilot Clinical Trial for Non-Invasive Fat Reduction of the Abdomen and Flanks Using a Monopolar 2 MHz Radiofrequency Device. Lasers in Surgery and Medicine. 2021 Mar;53(3):331-338. https://pubmed.ncbi.nlm.nih.gov/32621362/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Bernstein EF, Bloom JD, Basilavecchio LD. Non-invasive fat reduction of the flanks using a new cryolipolysis applicator and overlapping, two-cycle treatments. Lasers in Surgery and Medicine. 2014 Dec;46(10):731-735. https://pubmed.ncbi.nlm.nih.gov/25395266/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Zelickson BD, Burns AJ, Kilmer SL. Cryolipolysis for safe and effective inner thigh fat reduction. Lasers in Surgery and Medicine. 2015 Feb;47(2):120-127. https://pubmed.ncbi.nlm.nih.gov/25586980/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Faulhaber J, Sandhofer M, Weiss C. Effective noninvasive body contouring by using a combination of cryolipolysis, injection lipolysis, and shock waves. Journal of Cosmetic Dermatology. 2019 Aug;18(4):1015-1020. https://pubmed.ncbi.nlm.nih.gov/30980602/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Wu Z, Wang Y, Li W. A Clinical Early Evaluation of the Combined Use of Low-Intensity Focused Ultrasound and Radiofrequency for Female Abdominal Contouring. Journal of Cosmetic Dermatology. 2025 Jul;24(7):1923-1930. https://pubmed.ncbi.nlm.nih.gov/40671557/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Mostafa MS, Elshafey MA. Cryolipolysis versus laser lipolysis on adolescent abdominal adiposity. Lasers in Surgery and Medicine. 2016 Apr;48(4):365-370. https://pubmed.ncbi.nlm.nih.gov/26791606/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Klein KB, Bachelor EP, Becker EV. Multiple same day cryolipolysis treatments for the reduction of subcutaneous fat are safe and do not affect serum lipid levels or liver function tests. Lasers in Surgery and Medicine. 2017 Sep;49(7):640-644. https://pubmed.ncbi.nlm.nih.gov/28464272/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Meyer PF, Furtado ACG, Morais SFT. Effects of cryolipolysis on abdominal adiposity of women. Cryo Letters. 2017 Sep/Oct;38(5):377-383. https://pubmed.ncbi.nlm.nih.gov/29734405/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Hedayati B, Juhász M, Chu S. Adverse Events Associated With Cryolipolysis: A Systematic Review of the Literature. Dermatologic Surgery. 2020 Oct;46 Suppl 1:S28-S35. https://pubmed.ncbi.nlm.nih.gov/32976167/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Novak M, Weir D, Rohrich RJ. Safety and Efficacy of Transform for Noninvasive Lipolysis and Circumference Reduction of the Abdomen. Plastic and Reconstructive Surgery. Global Open. 2022 Jul;10(7):e4447. https://pubmed.ncbi.nlm.nih.gov/35923978/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Santos AF, Fernández AI, Fernández LS. Body Shaping and Skin Appearance Improvement in the Abdomen and Flanks by Radiofrequency Technology. Lasers in Surgery and Medicine. 2025 Nov;57(9):789-796. https://pubmed.ncbi.nlm.nih.gov/40908632/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Wanitphakdeedecha R, Sathaworawong A, Manuskiatti W. The efficacy of cryolipolysis treatment on arms and inner thighs. Lasers in Medical Science. 2015 Nov;30(8):2165-2169. https://pubmed.ncbi.nlm.nih.gov/26100004/ ↩︎ ↩︎ ↩︎ ↩︎
Dahmann S, Sanders A, Saarbeck C. Active Heating following Cryolipolysis Reduces Efficacy and Side Effects: A Randomized Split-Body Trial. Plastic and Reconstructive Surgery. 2023 Nov 1;152(5):1011-1020. https://pubmed.ncbi.nlm.nih.gov/36877615/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Ko K, Ryu HG, Park J. Computational modeling and histologic analysis of 6.78- and 2-MHz monopolar radiofrequency-induced thermal reactions. Lasers in Medical Science. 2025 Nov 29;40(1):312. https://pubmed.ncbi.nlm.nih.gov/41315066/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Fajkošová K, Machovcová A, Onder M. Selective radiofrequency therapy as a non-invasive approach for contactless body contouring and circumferential reduction. Journal of Drugs in Dermatology. 2014 Mar;13(3):291-296. https://pubmed.ncbi.nlm.nih.gov/24595574/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Santos AF, Fernández AI, Fernández LS. Effectiveness of Body Remodeling and Cellulite Appearance Improvement Treatments in the Thighs Using Symmed Radiofrequency Device. Journal of Cosmetic Dermatology. 2025 Jan;24(1):150-157. https://pubmed.ncbi.nlm.nih.gov/39815666/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Adatto MA, Adatto-Neilson RM, Morren G. Reduction in adipose tissue volume using a new high-power radiofrequency technology combined with infrared light and mechanical manipulation for body contouring. Lasers in Medical Science. 2014 Sep;29(5):1627-1631. https://pubmed.ncbi.nlm.nih.gov/24687404/ ↩︎ ↩︎ ↩︎
Chang SL, Huang YL, Lee MC. Long-term follow-up for noninvasive body contouring treatment in Asians. Lasers in Medical Science. 2016 Feb;31(2):295-301. https://pubmed.ncbi.nlm.nih.gov/26714982/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Marreira M, Rocha Mota L, Silva DFT. Study protocol for the use of photobiomodulation with red or infrared LED on waist circumference reduction: a randomised, double-blind clinical trial. BMJ Open. 2020 Aug 11;10(8):e034141. https://pubmed.ncbi.nlm.nih.gov/32784257/ ↩︎ ↩︎ ↩︎ ↩︎
Deligonul FZ, Yousefian F, Gold MH. Literature review of adverse events associated with cryolipolysis. Journal of Cosmetic Dermatology. 2023 Nov;22(11):2924-2931. https://pubmed.ncbi.nlm.nih.gov/37988712/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Shek SY, Yeung CK, Chan JC. The efficacy of a combination non-thermal focused ultrasound and radiofrequency device for noninvasive body contouring in Asians. Lasers in Surgery and Medicine. 2016 Feb;48(2):120-128. https://pubmed.ncbi.nlm.nih.gov/26352171/ ↩︎ ↩︎ ↩︎ ↩︎
Pahlavani N, Nattagh-Eshtivani E, Amanollahi A, et al. Effects of microwave technology on the subcutaneous abdominal fat and anthropometric indices of overweight adults: A clinical trial. Journal of Cosmetic Dermatology. 2022 Apr;21(4):1485-1492. https://pubmed.ncbi.nlm.nih.gov/34021953/ ↩︎ ↩︎
Suvaddhana Loap S, SidAhmed-Mezi M, Meningaud JP. A Prospective, Comparative Study (before and after) for the Evaluation of Cryothermogenesis' Efficacy in Body Contouring: Abdomen and Saddlebags. Plastic and Reconstructive Surgery. 2022 Mar 1;149(3):611-619. https://pubmed.ncbi.nlm.nih.gov/35196676/ ↩︎ ↩︎
Nagel SS, Rauh A, Siegwart LC, et al. From Esthetic Medicine to Optimizing Reconstructive Outcome: A Feasibility Trial on Secondary Refinement of Fasciocutaneous Anterolateral Thigh Flaps with Cryolipolysis. Journal of Reconstructive Microsurgery. 2023 Feb;39(2):121-128. https://pubmed.ncbi.nlm.nih.gov/36150694/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Karakoyun Ö, Ayhan E, Aydın D. Carbon footprint assessment of Energy-Based devices in clinical and aesthetic dermatology. Lasers in Medical Science. 2025 Sep 20;40(1):124. https://pubmed.ncbi.nlm.nih.gov/40973842/ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
Winter ML. Post-pregnancy body contouring using a combined radiofrequency, infrared light and tissue manipulation device. Journal of Cosmetic and Laser Therapy. 2009 Dec;11(4):229-235. https://pubmed.ncbi.nlm.nih.gov/19951194/ ↩︎