Doctor’s Advice: What is Focused Ultrasound? Dr. Saetawut Lertlukpreecha explains how to lift and tighten your skin — no surgery required.

Let’s fully understand Focused Ultrasound together.

Hello, I’m Dr. Saetawut Lertlukpreecha.

Many of you may have heard the term “HIFU” or High Intensity Focused Ultrasound,

but still wonder what it really is, who it’s suitable for, and why it’s so popular today.

What is High Intensity Focused Ultrasound?

High Intensity Focused Ultrasound is a technology that uses focused ultrasound energy to deliver heat deep beneath the skin —

non-invasively and without downtime.

The goal is to tighten the skin, stimulate collagen production, and reshape the face, working directly at the SMAS layer (Superficial Musculoaponeurotic System), which is the same layer targeted during surgical facelifts.

• There are various HIFU machines on the market, such as Ulthera, Liftera, Ultraformer, and more. Each brand differs in precision and energy stability, which is a crucial factor in delivering effective results and minimizing risks,

  such as fibrosis under the skin or surface burns from excessive heat.

How It Works

• Ultrasound waves are delivered deep into the skin without damaging the surface layer

• The focal point is very small (similar to a grain of rice), creating tiny thermal spots in the SMAS layer

• These points stimulate natural collagen production, tightening the skin gradually within 2–4 weeks

• No wounds, no downtime — you can resume normal activities immediately

Who Is It Suitable For?

• Individuals experiencing mild sagging, jowls, or poor jawline definition

• Those looking to lift and tighten without surgery

• People wanting to stimulate collagen and firm their skin

• Especially beneficial for those over 30, or younger individuals starting to notice changes in facial contours

ตำแหน่งที่สามารถทำได้

Area	Results
Cheeks	Lifts sagging, creates a slimmer face
Jawline	Defines jawline, reduces jowls
Under the chin	Reduces double chin
Eye area	Lifts outer corners, reduces drooping
Forehead	Lifts brows naturally without Botox
Neck	Firms loose skin
Hands & feet	Reduces wrinkles on hands and feet

Results and Treatment Frequency

• Initial results (5–10%) visible immediately

• Full results develop over 2–4 weeks

• Lasts 6–12 months, depending on skin condition and age

• Recommended 1–2 times per year for continuous collagen stimulation

Things to Know Before Treatment

• A physician’s evaluation is essential to determine the right energy level

• Avoid cheap or uncertified machines, which may deliver uneven or shallow energy

• Choose a clinic with authentic equipment, and ensure the procedure is performed by a licensed physician

What Does It Feel Like?

• You may feel a warm sensation or a slight sharp pinch beneath the skin (depending on energy level)

• Some redness or minor swelling may appear but should subside within 1–2 days

• No wounds or downtime required

Doctor’s Recommendation

“Focused Ultrasound doesn’t add anything into your skin — it uses energy to stimulate your skin to heal itself from within. If done at the right points with the right technique, it can lift your skin without ever needing a scalpel.”

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Summary

Focused Ultrasound is a safe, non-invasive facial lifting option with no downtime.

It’s ideal for those who want skin tightening without pain or surgery.

However, results depend heavily on the doctor’s technique and the quality of the device used.

Choose carefully — and you’ll enjoy beautiful, natural-looking results safely.