Why Is It Important for Ultherapy PRIME to Reach the SMAS Layer?

Why Is It Important for Ultherapy PRIME

 to Reach the SMAS Layer?

Published | August 2, 2026 | Last Updated: August 2, 2026

Medical Reviewer | Dr. Yumin Lee at MeSOnBOM Clinic

Hello.
This is Dr. Yumin Lee from MeSOnBOM Clinic.

Many people searching for hongdaeulthera are looking for a non-surgical lifting treatment to improve facial contours. Over time, the jawline may appear less defined, and the overall facial contour may not look as sharp as it once did.

These changes are not caused by skin aging alone. Rather, they are part of the natural aging process in which multiple facial support structures gradually change together.

Ultherapy PRIME, often searched as hongdaeulthera, is a non-invasive lifting treatment designed to deliver focused ultrasound energy to deeper tissue layers while taking these structural changes into consideration.

In this article, we'll discuss why facial contours change over time, how Ultherapy PRIME works, and why accurately targeting the SMAS layer is an important part of treatment planning.

Why Do Facial Contours Change with Age?

Changes in facial contours are not caused by the skin alone. 

They occur as several supporting structures—including the dermis, fat layer, retaining ligaments, and the SMAS layer—undergo age-related changes together.

As we age, collagen and elastin levels gradually decrease, reducing skin elasticity. 

At the same time, facial fat may shift, and the retaining ligaments that support facial soft tissues can gradually lose their strength.

The SMAS (Superficial Musculoaponeurotic System), located beneath the skin, also plays an important role in supporting facial structure. 

As these tissues change together over time, the jawline may become less defined and facial contours may gradually appear different.

Because skin thickness, facial fat volume, and facial anatomy vary from person to person, changes in facial contours can differ considerably even among individuals of the same age.

hongdaeulthera

How Does Ultherapy PRIME Create a Lifting Effect?

Ultherapy PRIME is a non-invasive lifting procedure that uses MFU-V (Microfocused Ultrasound with Visualization) technology to deliver focused ultrasound energy to targeted tissue depths while minimizing damage to the skin surface.

The delivered ultrasound energy creates microscopic Thermal Coagulation Points (TCPs) within the target tissue. This controlled thermal stimulation activates the skin's natural healing response, promoting collagen remodeling over time and helping improve skin firmness and elasticity.

The goal is not simply to deliver energy deeper into the skin, but to deliver it accurately to the intended tissue layer. Since skin thickness and facial anatomy vary among individuals, treatment should always be planned according to each patient's unique anatomical characteristics. This individualized approach is one of the reasons many patients interested in hongdaeulthera seek professional consultation before treatment.

Why Is Accurate Targeting of the SMAS Layer Important?

The SMAS layer is a fibrous connective tissue beneath the skin that helps support facial structure. 

However, the thickness of the skin, the distribution of facial fat, and the location of the SMAS layer are not the same for everyone.

Ultherapy PRIME incorporates DeepSEE™ real-time ultrasound imaging, allowing practitioners to visualize tissue layers during treatment and identify the appropriate treatment depth.

By evaluating each patient's skin structure and tissue characteristics in real time, physicians can develop a more individualized treatment plan and approach the target tissue with greater precision according to different facial regions.

Rather than applying the same energy settings or treatment lines to every patient, carefully assessing the skin condition and facial anatomy before treatment is an important part of personalized treatment planning for hongdaeulthera.

 Frequently Asked Questions (FAQ)

Q. When can I expect to see results after Ultherapy PRIME?

A. Individual results vary, but some patients may notice a subtle tightening sensation immediately after treatment. 

As collagen remodeling progresses, gradual improvements are generally observed over the course of two to three months.

Q. Are there any precautions after treatment?

A. Mild redness or swelling may occur after treatment but usually resolves on its own. 

On the day of treatment, it is recommended to avoid excessive alcohol consumption, saunas, and strenuous exercise. 

Consistent sun protection and proper moisturization are also recommended.

Q. How many Ultherapy PRIME treatments are usually needed?

A. The number of treatments varies depending on each individual's skin condition and degree of facial contour changes. 

Treatment plans are established based on a physician's evaluation, and additional sessions may be considered when appropriate.

Changes in facial contours are a natural part of aging that involve not only the skin but also deeper supporting structures such as the dermis, fat layer, retaining ligaments, and the SMAS layer.

Ultherapy PRIME is a non-invasive lifting treatment that delivers focused ultrasound energy to deeper tissue layers to promote collagen remodeling. 

Because every individual has unique skin thickness and facial anatomy, developing a personalized treatment plan based on a thorough assessment is an important part of achieving appropriate treatment outcomes.

If you are considering Ultherapy PRIME, consult with a qualified medical professional to determine a treatment plan tailored to your skin condition and facial anatomy.

Author | Dr. Yumin Lee
Medical Institution | MeSOnBOM Clinic