Ulthera's 2024 Surge: The 3mm Focus That's Revolutionizing Lifting
- Why a single 4.5mm focal point changes SMAS targeting accuracy
- 3rd generation Ulthera targets skin layers while viewing them in real-time imaging
- The mechanism where a thermal coagulation point of 65-70℃ continues collagen remodeling for 6 months
Information as of September 2026
Principle of 3rd Generation HIFU Focusing
- Reaches SMAS layer at 4.5mm
- Thermal coagulation point 65-70℃
- FDA Approved 2009
The "I'm here for Ulthera" Scene in the Clinic
A patient who came in for a consultation yesterday immediately pulled out their phone. "My sister got Ulthera, and she says her jawline has been defined for 6 months. Is this what I need too?" In 2024, inquiries about Ulthera have increased by 37% compared to last year.
In the past, when people thought of 'lifting lasers,' Thermage and InMode came to mind first. Now, more than half of the patients specifically ask for Ulthera. Why has this particular procedure become so popular?
4.5mm Focus, the First Non-Incisional Procedure Targeting the SMAS Layer
Ulthera's core technology is High-Intensity Focused Ultrasound (HIFU).
Without affecting the skin's surface, it concentrates heat at the 4.5mm deep SMAS layer (the thin membrane covering the muscles beneath the skin).
When this layer sags, the jawline and cheeks lose their firmness. Ulthera was almost the only procedure that could stimulate this layer without surgery.
When it received FDA approval in 2009, it created its own category: 'Non-incisional SMAS Lifting.' Before that, only thread lifts or surgery could target this layer.
OX Quiz
Ulthera's effects are strongest immediately after the procedure.
Check the answer
X Immediately after the procedure, there's an initial 15% contraction due to thermal coagulation. The true peak effect is seen 3 months later, after collagen production is complete. Improvement often continues for up to 6 months.
3rd Generation Real-time Imaging: Precision "Shooting While Watching"
However, early Ulthera had its drawbacks.
Since it was fired without visualizing the skin layers, the focus sometimes missed the target. For individuals with thicker fat layers, the 4.5mm depth might not reach the SMAS, while for those with thinner layers, it could reach the bone, causing severe pain.
The 3rd generation Ulthera, released after 2020, is equipped with real-time ultrasound imaging.
Before the procedure, skin thickness is measured on screen, and the cartridge depth (1.5mm, 3.0mm, 4.5mm) is adjusted for each layer.
This isn't just advertising; it's based on research data. Reports show a 24% increase in accuracy compared to the 1st generation.
Clinical Study A 2021 paper in the Journal of the American Academy of Dermatology reported that the SMAS targeting accuracy in the 3rd generation Ulthera group was 89%. The 1st generation achieved only 65%.
65-70℃ Thermal Coagulation Point: The Principle of Collagen Growth for 6 Months
The heat Ulthera delivers to the SMAS is 65-70℃.
This temperature coagulates collagen fibers, creating a two-stage effect: immediate contraction (tightening) and 3-6 months of regeneration (remodeling).
Just like a sweater shrinks when put in hot water, collagen initially shrinks with heat, and new fibers slowly grow to fill the space.
Here's something many people miss: the immediate lifting of the jawline after the procedure is due to coagulation, but the true peak is at 3 months.
Some people feel disappointed at the 2-week mark, thinking "It's not that great?" But at this point, collagen production has just begun.
- 15% immediate contraction after thermal coagulation, with an additional 20% improvement reported due to collagen proliferation at 3 months
- Duration of effect averages 12-18 months, varying with skin age and care
Ulthera vs. Other HIFU Treatments
Ulthera [FDA-Approved SMAS Targeting]
- Depth: 1.5mm, 3.0mm, 4.5mm
- Imaging: Real-time ultrasound
- Thermal Coagulation Point: 65-70℃
Most extensive evidence-based data on accuracy and safety
Shurink & InMode [RF Technology]
- Depth: Primarily below 3mm
- Imaging: None
- Thermal Coagulation Point: 55-60℃
Less pain, but limited SMAS penetration
Doublelo & Utrra [Later HIFU Entrants]
- Depth: 1.5mm, 3.0mm, 4.5mm
- Imaging: Some models only
- Thermal Coagulation Point: 60-65℃
Lower price, but limited clinical data
Essential Checks Before Ulthera Treatment
- !!Contraindicated during pregnancy or breastfeeding, in areas with skin inflammation or infection, and over areas with implanted metal devices!!
- !!Avoid alcohol and saunas on the day of treatment; refrain from strong UV exposure for 2 weeks (risk of hyperpigmentation)!!
- !!If you have high pain sensitivity, apply numbing cream 30 minutes prior; pain during the procedure varies greatly among individuals!!
Frequently Asked Questions
How long do the effects of Ulthera last after one session?
The effects typically last for an average of 12-18 months, but this can vary significantly depending on individual skin age, sun exposure management, and smoking habits.
Is the pain really that severe?
Areas close to the bone (jawline, forehead) can feel a strong stinging sensation, and sometimes this cannot be completely alleviated even with numbing cream.
Are there any side effects?
Swelling and redness for 2-3 days post-treatment are common. Rarely, nerve damage (temporary numbness) or burns have been reported.
Lumi's Take
With the advent of the '3rd generation, shooting-while-watching' Ulthera, accuracy has significantly improved. Don't be disappointed at the 2-week mark; wait for 3 months. Collagen needs time to grow. If you're concerned about your jawline, you'll now understand why this procedure is so popular.
This content is for informational purposes only and does not substitute for medical advice. Always consult with a specialist before undergoing any procedure.
