Q: What if I do not see results one month after XERF?

1. Is one month too early, and when is the main review?One month is not too early to assess progress, but it is early to judge the full outcome. RF produces thermal changes in collagen followed by new collagen formation and tissue remodeling. Changes can develop gradually over weeks to months. We plan the main review at approximately three months.2. What should we check before saying it did not work?Start with the original goal: skin quality, jawline definition or another concern. Compare against what was intended, using photographs with similar lighting, angles and expression.3. Wait, treat again or change approach?After reviewing the goal and response, consider the following options.OptionWhat to considerNext stepContinue follow-upStill within the first month, no unusual symptoms, and too early to judge the full outcomeReview around month three with consistent lighting, angles and expressionTreat again as plannedLaxity remains suitable for RF and further treatment is expected to offer a clear benefitSpecify the area and goal, then adjust area, depth, energy and passesChange approach or stop additional treatmentThe main concern is not laxity, the goal exceeds tightening alone, or there is no clear benefit at the main reviewReassess the cause and expectations, then choose a better-matched approach or stop further proceduresRecord factors that may affect assessment, including weight gain or loss and other procedures.References: [5] · [7]

Question 1

Is XERF certified?

Accepted Answer

XERF received US FDA clearance in 2025 under K251327 for the indications stated in that document. Also consider the traceable source of the device and treatment tips, and correct use by a trained practitioner.References: [1] · [10]

Question 2

Will XERF reduce baby fat or cause hollowing? Why can the face look smaller?

Accepted Answer

Individual treatment design is key. Facial anatomy, tissue thickness and existing fat volume differ. XERF offers adjustable depth modes, energy levels and applicators; the physician decides how to use them in each area.Fuller cheeks: the plan may address firmness and contour, so the jawline may become more defined and the face look smaller.A lean face, hollow cheeks or low volume: preserving desired fullness takes priority. The physician selects appropriate zones, applicators and energy, or avoids certain areas.XERF should not be applied identically across every face. A smaller-looking face and hollowing are different concerns. BEHAP plans firmness around your facial structure and preferences.References: [1] · [2] · [5]

Question 3

What is the difference between 300 and 600 shots? Is more better?

Accepted Answer

The shot count starts with the result you want. You may want a more defined jawline or firmness across several facial areas. The physician assesses your skin and facial structure and designs treatment around four factors.AREA × DEPTH × ENERGY × PASSESTreatment DesignAREA — Where, and how large an area? Define whether treatment focuses on the jawline or includes the cheeks and under the chin.DEPTH — Which mode fits each area? Shallow, Middle and Deep are selected by area and goal. The same mode need not be used throughout, and deeper is not always more appropriate.ENERGY — How much energy at each point? The physician adjusts for skin condition, location and response. Each shot does not necessarily deliver the same energy, so count alone is insufficient.PASSES — How many passes through an area? The physician plans shot distribution and passes, rather than repeatedly treating one point to reach a count. Broader coverage or additional passes require an adequate allocation.Who might consider 300 or 600 shots?These are consultation examples, not fixed standards or a manufacturer protocol.Shot countPotential goalExample300 shots — focused areasLimited coverage where the physician considers the allocation sufficientJawline and lower cheeks without spreading treatment across the entire face600 shots — broader coverageSeveral areas, overall firmness, or a plan requiring additional passesCheeks, jawline and under the chin, with extra allocation where clinically appropriateReferences: [1] · [2] · [5] · [7]

Question 4

What if I do not see results one month after XERF?

Accepted Answer

1. Is one month too early, and when is the main review?

One month is not too early to assess progress, but it is early to judge the full outcome. RF produces thermal changes in collagen followed by new collagen formation and tissue remodeling. Changes can develop gradually over weeks to months. We plan the main review at approximately three months.

2. What should we check before saying it did not work?

Start with the original goal: skin quality, jawline definition or another concern. Compare against what was intended, using photographs with similar lighting, angles and expression.

3. Wait, treat again or change approach?

After reviewing the goal and response, consider the following options.

Option	What to consider	Next step
Continue follow-up	Still within the first month, no unusual symptoms, and too early to judge the full outcome	Review around month three with consistent lighting, angles and expression
Treat again as planned	Laxity remains suitable for RF and further treatment is expected to offer a clear benefit	Specify the area and goal, then adjust area, depth, energy and passes
Change approach or stop additional treatment	The main concern is not laxity, the goal exceeds tightening alone, or there is no clear benefit at the main review	Reassess the cause and expectations, then choose a better-matched approach or stop further procedures

Record factors that may affect assessment, including weight gain or loss and other procedures.

References: [5] · [7]

Question 5

When can I have XERF after filler, Botox or a thread lift?

Accepted Answer

Allow the previous procedure to start taking effect and post-treatment symptoms to settle first. Suggested review periods differ:Botox: approximately 2 weeks for the effect to begin and initial assessment to be clearer.Filler: approximately 2–4 weeks for settling, swelling to subside and tissue recovery.Thread lift: approximately 1–3 months for tissue settling, swelling and tightness to decrease, and the initial result to be assessed.These are review periods for the previous procedure, not automatic clearance for XERF. XERF training lists neurotoxin or filler injections within four weeks as a precaution. The physician must consider the product, location and recovery before scheduling. Training p. 28If swelling, redness, pain, substantial bruising or unusual symptoms remain, postpone XERF and consult your treating physician.Tell the team what you had, when, and where, so treatments are appropriately sequenced and the previous result can be assessed clearly.References: [2]

Question 6

Which areas can XERF treat?

Accepted Answer

Common areas include the cheeks, jawline, under the chin and neck, to address laxity and firmness. You can also discuss areas of concern on the body; suitability for XERF needs to be considered separately for each area and concern.References: [1] · [2]

Question 7

Can XERF address loose skin after weight loss? Does it reduce fat?

Accepted Answer

If loose skin after weight loss is the main concern, the physician can consider XERF for firmness. The area and degree of laxity must be assessed against what treatment can achieve.Our XERF goals are firmer, healthier-looking skin. If the main goal is fat removal or volume reduction, the physician considers a more appropriate approach.ConcernBEHAP approachLoose skin after weight lossAssess XERF and tailor the plan to the skin and treatment areaExcess fat with firm skin; a wish to reduce thickness or sizeXERF is not our first choice. Assess fat-management and contouring options, such as the Ignite Quantum program, with the physician explaining which steps are needed for the volume goalSubstantial excess skin or a major size-change goalAssess other options because tightening alone may be insufficientThe physician considers fat volume, skin laxity and the change you want before selecting a program.QuantumRF involves an instrument beneath the skin, so its procedure and recovery require separate consideration from XERF. The cited XERF clinical evidence on this page concerns the face and neck; body use requires area-specific assessment.References: [1] · [5] · [7] · [16]

Question 8

Does XERF hurt? Do I need numbing cream?

Accepted Answer

Treatment can generally be performed without numbing cream. In BEHAP’s clinical experience, most patients describe comfortable warmth rather than pain during treatment.If any area feels hot or uncomfortable, tell the physician immediately; you do not need to endure it. Energy and cooling can be adjusted to the area and your sensations while keeping the treatment goal in mind.At BEHAP, your experience during treatment matters as much as the result we plan for. We want XERF to feel comfortable during treatment and reassuring when you return for care.References: [1] · [2]

Question 9

Is XERF safe for both Asian and Western skin?

Accepted Answer

It can be used across a range of skin tones, including lighter and darker skin. Your current skin condition, treatment history and medical history also matter. Tell the clinic before your appointment if you have a wound, rash or active irritation so an appropriate time can be chosen.References: [1] · [2]

Question 10

Why does BEHAP focus on skin hydration before XERF?

Accepted Answer

We want your skin to be healthy and ready before treatment. The physician assesses dryness, hydration and irritation. If the skin is not ready, we plan skin care first.Hydration is related to the skin’s electrical properties, including impedance, or opposition to alternating current, which is relevant to RF energy delivery through tissue. XERF’s Accurate Impedance Feedback reads tissue electrical properties during treatment to help the system adapt energy delivery.At BEHAP, skin preparation is part of treatment design. We consider skin readiness, treatment areas, energy levels and your comfort throughout, tailoring each step to you.Attention to the details before treatment is part of the care we want you to experience with XERF at BEHAP.References: [1] · [14]

Question 11

How long do XERF results last, and when should I return?

Accepted Answer

XERF results can develop gradually after treatment. Studies report changes in firmness and skin quality through approximately three months, making this an important time to compare with baseline and assess the original goal.

In BEHAP’s clinical experience, 6–12 months is an important window for reassessment and planning repeat treatment. In suitable patients, we have observed good results with continued care, and some show additional change with an overall result that appears better than after the first treatment. This is a clinical observation, not a conclusion from a comparative study of repeat treatment at this interval.

Before the next treatment, the physician reviews how much firmness remains, which areas need further attention, and changes in your skin or facial structure to tailor the next plan.

References: [5] · [7]

Question 12

How should I prepare before XERF?

Accepted Answer

Arrive with clean skin and avoid alcohol for 24 hours beforehand. In the lead-up, avoid strong sun exposure and products that irritate your skin. Tell the team about medical conditions, medicines, implanted devices or metal, and recent procedures. Ask before stopping any prescribed skin treatment.References: [2]

Question 13

Is downtime needed? When can I use makeup, exercise and skincare after XERF?

Accepted Answer

You can generally return to work and daily activities after treatment. Mild pinkness, warmth or swelling may occur initially. Focus on hydration and minimizing irritation.Skincare: use a gentle moisturizer for sensitive skin that you already tolerate, together with broad-spectrum SPF 50+. Initially pause retinol, exfoliating acids and scrubs.Makeup: if possible, avoid applying it immediately after treatment. Wait until warmth and redness settle, use clean tools, and remove makeup gently.Exercise: walking and light activity are fine. Avoid strenuous exercise, saunas and activities that cause substantial heat or sweating on the treatment day, particularly while skin remains red or hot.Contact the clinic promptly if burning pain, redness or swelling increases, or blisters develop. The physician can assess and provide appropriate care.References: [2] · [15]

Question 14

How does XERF compare with Thermage and Ultherapy, and which suits my face?

Accepted Answer

All three address laxity, but their energy delivery and treatment-planning tools differ. The physician starts with the change you want and assesses your skin and facial structure.ComparisonXERFThermage FLXUltherapy PRIMEEnergyDual-frequency monopolar RF: 6.78 and 2 MHzMonopolar RFMicrofocused ultrasound with tissue visualizationPlanningShallow, Middle and Deep modes with energy levels tailored by areaArea-specific tips, shot distribution and energy adjustmentUltrasound imaging helps identify tissue layers and select 1.5, 3.0 or 4.5 mm transducersGoals consideredFirmness, skin quality and jawline definition with a multi-depth planFirmness, smoothness and wrinkles through heating collagen-rich tissueLifting with focused energy placed in tissue layers seen on imagingDuring treatmentImpedance feedback and cooling coordinated with energy deliveryAdaptive energy delivery, cooling and vibration for comfortReal-time imaging to check location and transducer contactHow do we choose?Skin quality and firmness, with different needs across areas: XERF offers depth modes and energy settings to tailor the plan. Thermage FLX is also an option for firmness and smoothness. The physician compares them against your skin and expectations.Targeting layers visible during treatment: Ultherapy PRIME provides ultrasound imaging to help select treatment location and depth.A lean face, hollow cheeks or low volume: assess where fullness should be preserved, whichever device is chosen.Fat reduction or substantial excess skin: assess other options, as tightening alone may not address the whole goal.For XERF at BEHAP, we consider AREA × DEPTH × ENERGY × PASSES, together with skin preparation and your comfort during treatment.Ask: “How will this plan address my concern?” Your physician should explain this before treatment.References: [1] · [11] · [13]

Question 15

Who should delay or avoid XERF, and what history should I disclose?

Accepted Answer

Disclose medical conditions, medicines, implanted devices or materials, and previous procedures before XERF. Some are contraindications; others require individual assessment or postponement.Contraindications listed in the training documentHistory or conditionBefore bookingImplanted pacemaker, defibrillator or other electrical deviceTell the clinic before booking, as RF may interfere with the device Training p. 27Pregnancy or breastfeedingDefer XERF during this period Training p. 27Permanent filler or facial implant in the treatment areaTell the physician the type and location; training lists this as a contraindication in the relevant area Training p. 27Infection in the treatment area or pathological abnormalities requiring diagnosisAssess and address the condition before XERF Training p. 27Conditions that may impair peripheral nerve functionTell the physician; training cites diabetes and multiple sclerosis in the context of nervous-system impairment Training p. 27Facelift surgery within two monthsDo not receive XERF during this period Training p. 27Training also lists unrealistic treatment expectations. The physician should explain the limits and agree on appropriate goals before starting. Training p. 27Precautions requiring assessmentThese are precautions, not an automatic exclusion for everyone with these histories.What to discloseDetails for the physicianBotox or fillerTell the physician the product, location and date; injections within four weeks are a precaution Training p. 28Fat grafting or skin graftsEspecially in the treatment area within six months Training p. 28Metal implantsTell the physician their type and location; even metal outside the current pathway requires caution Training p. 28Medical conditions or ongoing treatmentIncluding cancer, autoimmune or connective tissue disease, hypertension, epilepsy, acute illness, uncontrolled diabetes or lesions associated with radiotherapy or chemotherapy Training p. 28Blood disorders or regular medicinesEspecially aspirin, anticoagulants and long-term anti-inflammatory medication; the physician must review use before treatment Training p. 28Allergies to medicines, medical adhesives or cornThese may be relevant to medication, the return pad or coupling-gel ingredients Training p. 28Recurrent herpes, keloids, tanned or sun-damaged skinThe physician assesses the skin and any preparation needed Training p. 28Recent or cosmetic tattoos in the treatment areaTell the physician the location and date Training p. 28Tell the physician if you cannot follow pre- or post-treatment instructions so the plan can be adapted. Training p. 28If you are unsure whether your history is relevant, contact the team before booking. The document states that this list cannot cover every condition and recommends expert medical assessment when in doubt. Training p. 27References: [2]

Comparison	XERF	Thermage FLX	Ultherapy PRIME
Energy	Dual-frequency monopolar RF: 6.78 and 2 MHz	Monopolar RF	Microfocused ultrasound with tissue visualization
Planning	Shallow, Middle and Deep modes with energy levels tailored by area	Area-specific tips, shot distribution and energy adjustment	Ultrasound imaging helps identify tissue layers and select 1.5, 3.0 or 4.5 mm transducers
Goals considered	Firmness, skin quality and jawline definition with a multi-depth plan	Firmness, smoothness and wrinkles through heating collagen-rich tissue	Lifting with focused energy placed in tissue layers seen on imaging
During treatment	Impedance feedback and cooling coordinated with energy delivery	Adaptive energy delivery, cooling and vibration for comfort	Real-time imaging to check location and transducer contact

Shot count	Potential goal	Example
300 shots — focused areas	Limited coverage where the physician considers the allocation sufficient	Jawline and lower cheeks without spreading treatment across the entire face
600 shots — broader coverage	Several areas, overall firmness, or a plan requiring additional passes	Cheeks, jawline and under the chin, with extra allocation where clinically appropriate

Concern	BEHAP approach
Loose skin after weight loss	Assess XERF and tailor the plan to the skin and treatment area
Excess fat with firm skin; a wish to reduce thickness or size	XERF is not our first choice. Assess fat-management and contouring options, such as the Ignite Quantum program, with the physician explaining which steps are needed for the volume goal
Substantial excess skin or a major size-change goal	Assess other options because tightening alone may be insufficient

History or condition	Before booking
Implanted pacemaker, defibrillator or other electrical device	Tell the clinic before booking, as RF may interfere with the device Training p. 27
Pregnancy or breastfeeding	Defer XERF during this period Training p. 27
Permanent filler or facial implant in the treatment area	Tell the physician the type and location; training lists this as a contraindication in the relevant area Training p. 27
Infection in the treatment area or pathological abnormalities requiring diagnosis	Assess and address the condition before XERF Training p. 27
Conditions that may impair peripheral nerve function	Tell the physician; training cites diabetes and multiple sclerosis in the context of nervous-system impairment Training p. 27
Facelift surgery within two months	Do not receive XERF during this period Training p. 27

What to disclose	Details for the physician
Botox or filler	Tell the physician the product, location and date; injections within four weeks are a precaution Training p. 28
Fat grafting or skin grafts	Especially in the treatment area within six months Training p. 28
Metal implants	Tell the physician their type and location; even metal outside the current pathway requires caution Training p. 28
Medical conditions or ongoing treatment	Including cancer, autoimmune or connective tissue disease, hypertension, epilepsy, acute illness, uncontrolled diabetes or lesions associated with radiotherapy or chemotherapy Training p. 28
Blood disorders or regular medicines	Especially aspirin, anticoagulants and long-term anti-inflammatory medication; the physician must review use before treatment Training p. 28
Allergies to medicines, medical adhesives or corn	These may be relevant to medication, the return pad or coupling-gel ingredients Training p. 28
Recurrent herpes, keloids, tanned or sun-damaged skin	The physician assesses the skin and any preparation needed Training p. 28
Recent or cosmetic tattoos in the treatment area	Tell the physician the location and date Training p. 28

XERF — Firmness, designed around you

Dual-Frequency Monopolar RF from Cynosure Lutronic

Firmer skin, with facial fullness in mind

Reinforces structure

Planning around the fullness of each area

Firmness, with facial fullness in mind

Refines skin quality

How dual-frequency RF works

Refines the shallow layers

Structural firming at depth

Shallow mode

Middle mode

Deep mode

Skin responds in two phases

Existing collagen contracts

New collagen forms

What the research indicates

Continuous improvement to 6 months

of subjects improved at 6 months

Collagen remodels without destroying fat

Firmer-looking skin, with your comfort in mind

Cooling where your skin needs it

A steadier build-up of warmth

No needles or numbing wait

Settings tailored to each area

Before & After XERF

Cheeks and facial contours

Preparing for the camera

Age-related skin laxity

XERF is suited to people who

XERF vs Thermage FLX vs Ultherapy Prime

The same machine doesn't mean the same result

Shot allocation follows the treatment plan

Real-time parameters guide treatment

We respect the skin's impedance

Stamp & Glide in the BEHAP treatment plan

Why choose XERF at BEHAP Wellness

Thailand’s Top 5for XERF shot volume

Know your treatment plan and what to expect

Firmness planned with facial fullness in mind

Prepare your skin before treatment

We listen and adjust during treatment

Follow-up guided by your original goals

Your XERF treatment at BEHAP Wellness

When will you see results, and how many sessions?

How much does XERF cost at BEHAP Wellness Clinic?

What does the XERF fee include?

What should you compare between clinics?

Check the device and treatment tips before treatment

Before you choose XERF

Is XERF certified?

Will XERF reduce baby fat or cause hollowing? Why can the face look smaller?

What is the difference between 300 and 600 shots? Is more better?

Who might consider 300 or 600 shots?

What if I do not see results one month after XERF?

1. Is one month too early, and when is the main review?

2. What should we check before saying it did not work?

3. Wait, treat again or change approach?

When can I have XERF after filler, Botox or a thread lift?

Which areas can XERF treat?

Can XERF address loose skin after weight loss? Does it reduce fat?

Does XERF hurt? Do I need numbing cream?

Is XERF safe for both Asian and Western skin?

Why does BEHAP focus on skin hydration before XERF?

How long do XERF results last, and when should I return?

How should I prepare before XERF?

Is downtime needed? When can I use makeup, exercise and skincare after XERF?

How does XERF compare with Thermage and Ultherapy, and which suits my face?

How do we choose?

Who should delay or avoid XERF, and what history should I disclose?

Contraindications listed in the training document

Precautions requiring assessment

Understand XERF before you decide

What Is XERF?

Does the technique make a difference?

Will XERF Make My Face Hollow?

Every plan is designed by a doctor

The XERF medical team at BEHAP

Reviews from XERF patients at BEHAP

Book your XERF consultation at BEHAP Asoke, Bangkok

Thailand’s Top 5
for XERF shot volume