“Laser lifting” is a broad term that covers several distinct technologies, and the side effect profile of each one differs meaningfully.
At 4Ever Cheongdam Clinic, Dr. Younghan Seo breaks down what can realistically go wrong with each type of lifting treatment — and what determines whether those risks are manageable.
Key Takeaways
“Laser lifting” includes ultrasound, radiofrequency, and microwave-based devices — each with a different mechanism and different risk profile.
The most clinically significant risk shared across these treatments is volume loss and facial hollowing, particularly in patients with thin skin or low facial fat.
Most common reactions — redness, swelling, bruising — are temporary and resolve within days to a week.
Rare but serious complications such as burns, scarring, or permanent hollowing are most often linked to incorrect energy settings or inadequate pre-treatment assessment.
Online reviews reflect individual experiences under specific conditions; they are not a reliable basis for deciding whether a treatment is right for your skin.
What Does “Laser Lifting” Actually Mean?
The term is used loosely to describe any energy-based lifting treatment, but the devices involved use different energy sources and act on different tissue layers.
The four most commonly performed in Korean dermatology clinics are Ulthera (ultrasound), Thermage and Oligio (radiofrequency), InMode FX (RF with suction), and Onda (microwave).
Understanding what each one does — and where it can go wrong — is more useful than treating them as interchangeable.
Ulthera: Ultrasound Lifting
Ulthera delivers high-intensity focused ultrasound (HIFU) to the SMAS layer — the same fascial layer targeted in surgical facelifts.
Because the energy reaches a greater depth than RF devices, it produces meaningful structural lifting but also carries a specific risk that RF treatments do not.
When ultrasound energy is delivered too aggressively or without adequate assessment of tissue thickness, fat layer damage can occur.
The result is localized hollowing or sunken areas that are not present before treatment.
This risk is higher in patients who already have thin skin or limited facial fat volume — and it is not always reversible without additional treatment.
Other reported reactions include temporary pain during the procedure, post-treatment redness, bruising, and transient numbness or tingling in the treated area.
Sensory changes typically resolve on their own over days to weeks.
Thermage and Oligio: Radiofrequency Lifting
RF lifting devices deliver thermal energy into the dermis, stimulating collagen contraction and gradual remodeling.
Compared to ultrasound lifting, the side effect frequency is generally lower.
Common post-treatment reactions include temporary redness, mild swelling, and slight changes in surface texture, all of which typically resolve within a few days.
In rare cases, excessive heat delivery to a localized area can produce minor burns or skin discoloration.
The likelihood of this occurring is significantly reduced with appropriate energy calibration and operator technique.
RF lifting is often better tolerated by patients with thinner skin than ultrasound-based devices, but individual assessment still determines safe energy parameters.
InMode FX
InMode FX combines radiofrequency energy with a suction mechanism, which applies mechanical pressure to the skin during treatment. The suction component is what distinguishes its side effect profile.
Bruising is the most common reaction, resulting from the pressure applied during suction. This typically resolves within approximately one week.
As with ultrasound lifting, excessive tightening or inadvertent fat reduction can lead to facial hollowing — a risk that is more pronounced in patients with limited subcutaneous fat.
Patients with sensitive skin may also experience redness or mild discomfort during and after treatment.
Onda: Microwave Lifting
Onda uses microwave energy to heat the deep dermis and subcutaneous fat layer, targeting both collagen stimulation and localized fat reduction.
It is sometimes described as combining effects of RF and ultrasound lifting.
The two most clinically significant risks are burns and volume loss.
When excessive energy is concentrated in the same area, first- or second-degree burns can result. Severe cases may require weeks to heal and can leave scarring.
Additionally, if fat cells in the treated area are over-destroyed, permanent hollowing can develop — a complication that does not resolve on its own and typically requires filler or a collagen booster to correct.
Patients with thin skin or low facial fat require particular caution with this device, as the margin between effective treatment and tissue damage is narrower.
Why Online Reviews Are an Unreliable Guide
Patient reviews of lifting treatments are widely available and can feel informative, but they have a structural limitation: every review describes one person’s result under a specific set of conditions — their skin thickness, fat distribution, the device used, the energy settings applied, and the operator’s technique. None of that information transfers to your situation.
Negative experiences tend to be described in vivid detail; positive ones tend toward idealization. Neither gives you an accurate picture of what the treatment would do for your skin specifically.
The factors that actually determine your outcome are your skin’s individual characteristics and whether the treatment plan accounts for them — not what happened to someone else.
What Actually Reduces Risk
Safe lifting treatment begins before the device is ever used. Pre-treatment assessment of skin thickness, fat distribution, and tissue structure — using imaging equipment where appropriate — determines which treatment is suitable, at what energy level, and whether any modification to standard protocol is needed.
Choosing a clinic with the diagnostic infrastructure to perform this assessment, and a clinician with the experience to interpret it, is the single most effective way to minimize the risks described above and improve the likelihood of a result you’re satisfied with.
Frequently Asked Questions
Q. Will it hurt? What does the treatment feel like?
A. This varies by device. Ulthera is generally the most uncomfortable — patients describe a sharp, intermittent sensation as each energy pulse is delivered. Thermage and Oligio produce a warming sensation that most patients find tolerable. InMode FX involves suction pressure in addition to heat. Onda is variable depending on the area treated. Topical anesthesia is applied before most treatments, and pain management options differ by clinic and device.
Q. How long does redness or swelling last after treatment?
A. For most RF-based treatments, redness and swelling resolve within one to three days. InMode FX bruising typically fades within a week. Ulthera can occasionally produce more persistent swelling or tenderness, though this usually settles within one to two weeks. Individual recovery varies.
Q. Can facial hollowing from lifting treatment be fixed?
A. It depends on the cause and severity. Hollowing resulting from fat layer damage does not resolve on its own and generally requires treatment with HA filler, Ellansé, or another collagen booster to restore volume. This is one of the reasons pre-treatment assessment matters: identifying patients at higher risk before treatment is far preferable to correcting the outcome afterward.
Q. I have thin skin. Which treatment is safest for me?
A. Thin skin and low facial fat volume increase the risk of hollowing with ultrasound-based devices (Ulthera) and microwave-based devices (Onda). RF-based treatments such as Thermage are generally better tolerated in this skin type, though energy settings still need to be adjusted accordingly. A clinical assessment of your tissue structure is necessary to determine what’s appropriate for your specific case.
Q. How do I know which lifting treatment is right for me?
A. There is no universal answer — the right device depends on your skin thickness, degree of laxity, fat distribution, and what you’re hoping to achieve. A consultation that includes proper skin analysis, not just a visual assessment, is the starting point for making that decision accurately.
Ready to discuss a treatment plan tailored to your skin?
4ever Cheongdam Clinic offers one-to-one consultations with Dr. Younghan Seo.