
Hello.
I’m Kim Ga-eul from Beauty’s Doctor.
When skin elasticity is no longer what it used to be or
the jawline begins to look less defined,
many people start looking into ultrasound lifting.
During consultations,
people often ask when the effects of Ulfit will appear,
how painful it is,
and whether they can return to their daily activities right away.
However, it is difficult to predict the post-treatment appearance
based on the device name alone.
This is because the required depth and treatment area
may vary depending on skin thickness, fat volume, and the location of sagging.

Three-line summary
- Ulfit uses ultrasound energy
focused at a set depth within the skin
to induce a localized heat response.
- To assess the effects of Ulfit,
you should consider the skin’s response
over several weeks rather than only on the day of treatment.
- After treatment,
avoid heat stimulation and vigorous massage,
and promptly seek advice if worsening pain
or sensory changes occur.
- How does Ulfit
work beneath the skin?

Ulfit uses high-intensity
focused ultrasound energy
concentrated at a set depth within the skin
to create small areas of heat response.
Rather than heating the entire skin surface,
it is closer to the concept of delivering heat
to the points where the ultrasound converges.
During this process,
the tissue temporarily contracts,

and as the skin recovers, collagen is reorganized,
which may lead to a noticeable change in elasticity.

However, a greater amount of energy or a higher number of shots
does not necessarily mean proportionally greater effects from Ulfit.
If you have little facial fat
or hollowing in the cheeks,
the treatment should be planned by identifying the necessary areas
while avoiding areas where further hollowing is a concern.
- When can the effects of Ulfit be assessed?

Some people feel that their skin is tighter
or that their facial contours look more defined immediately after treatment.
However, mild swelling may also be present at this stage
along with tissue contraction,
so it is difficult to judge the results based only on the same-day appearance.
After ultrasound stimulation, the skin needs some time to recover
and for the collagen response to continue.
Therefore, to assess the effects of Ulfit,

it is more appropriate to observe the changes over several weeks
rather than focusing only on the immediate post-treatment appearance.
Skin thickness and elasticity,

fat volume, and lifestyle habits
may affect when changes are noticed and the extent of those changes.
Rather than deciding the number and intervals of treatments from the start,
the approach is to assess the response after the first treatment
and adjust the next plan accordingly.
- What level of pain and downtime should you expect?

During treatment, you may feel a tingling sensation inside the skin,
pinpoint prickling,
and brief warmth.
Around the jawbone
or in areas with little fat,
the sensation of the ultrasound
seeming to resonate against the bone
may be more noticeable.
After treatment,
redness and mild swelling,
as well as temporary numbness or soreness when pressed,
may remain for a while.
Many people continue their daily activities immediately after treatment,
but the degree of pain and swelling varies from person to person.
If you have important photos or an event scheduled,
it is better to schedule the treatment
with enough time for recovery.
- What should you check before and after treatment?

Before treatment, be sure to tell the provider during your consultation
about any medications you are taking and any allergies,
as well as skin conditions and underlying medical conditions.
A history of recent filler, Botox, thread lifting,
or laser treatments
should also be considered when determining the treatment area and depth.
If you have dermatitis, wounds, or inflammatory lesions,
the treatment may be rescheduled
until the skin has settled.
After treatment,
avoid hot showers and saunas,
as well as activities that raise the skin temperature, such as heated spas,
for several days.
Strenuous exercise, alcohol,
and massage that applies strong pressure to the face
are also best avoided until the redness and warmth have subsided,
as this may support recovery.

When cleansing,
do not rub the skin harshly,
and use a gentle moisturizer.
When going outside,
apply sunscreen,
and if you will be outdoors for a long time,
you can also use a hat or parasol.
If pain becomes more severe over time
or you notice blisters, oozing,
or redness that is spreading,
contact the medical institution where you received the treatment.

If decreased sensation
or tingling continues for a prolonged period,
or movement around the mouth
feels different from usual,
do not simply wait on your own—report your condition.
In closing

When assessing the effects of Ulfit,
you should look beyond the feeling of tightness on the day of treatment
and also observe the skin’s recovery process.
Even when the same device is used,
required depth and treatment area may vary
depending on skin thickness, fat volume,
and the cause of sagging.
Rather than following the number of shots and intensity seen in reviews,

first identify the areas that need treatment
on your current face,
and adjust the plan according to the initial response.

Frequently asked questions

Q1. Do the effects of Ulfit appear immediately after treatment?
You may feel that your skin is tighter
or that your facial contours look more defined immediately afterward.
However, swelling and temporary tissue contraction
may also be involved, so it is better to observe the response
over several weeks as well.
Q2. Can I receive the treatment even if I have little facial fat?
Whether treatment is appropriate should be determined
after considering skin thickness and fat volume,
as well as areas with hollowing.
If you have little facial fat, the treatment area and depth
need to be determined more carefully.
Q3. Can I apply makeup and wash my face immediately after treatment?
If there are no particular abnormalities on the skin surface,
gentle cleansing and makeup may be possible.
However, avoid rubbing the skin harshly
or using irritating exfoliants.
Q4. How many Ulfit treatments do I need?
The required number of treatments may vary
depending on your skin condition, desired outcome,
and response after the first treatment.
Rather than deciding on the number of treatments from the start,
it is better to decide after checking the recovery process.
One thing to remember
A higher number of shots
or greater intensity
does not mean that a greater response
can be expected for every face.
Before treatment, check your skin thickness
and fat volume,
and distinguish between areas where hollowing is a concern
and areas that require treatment.
It is also advisable to confirm in advance
whether there is a post-treatment care contact
that you can reach
if pain or sensory changes continue after treatment.
Thank you for reading this long post today.
This has been Kim Ga-eul from Beauty’s Doctor.

