Hello,

I'm Dr. Sung Hwan Ahn, Chief Director of Gangnam Yonsei Line Clinic.

As people begin noticing softer jawlines or sagging cheeks when looking in the mirror, many start considering lifting treatments.

However, with so many lifting devices available—and different shot counts being recommended—it can be difficult to know which option is appropriate.

One of the most common questions we receive during consultations is whether 300 shots of XERF are sufficient, or whether 600 shots would be more appropriate.

Today, I'd like to explain when XERF 300-shot treatment may be considered, what results patients can generally expect, how long those results may last, and what to keep in mind after the procedure.

What Is XERF Lifting?

XERF is a dual monopolar radiofrequency (RF) lifting system that utilizes 6.78 MHz and 2 MHz frequencies.

By delivering controlled RF energy to different tissue depths, XERF promotes collagen remodeling, helping improve skin firmness and facial contours over time.

The treatment delivers thermal energy beneath the skin while minimizing unnecessary surface irritation.

For this reason, XERF is frequently considered during consultation for concerns such as:

• Sagging cheeks
• Loss of jawline definition
• Reduced skin firmness
• Overall facial contour changes

Another characteristic of the system is its integrated cooling technology, which helps improve patient comfort by reducing excessive heat during treatment.

When Is XERF 300 Shots Typically Considered?

One of the most common questions we hear is:

"Will 300 shots of XERF be enough?"

The first point to understand is that a higher number of shots does not automatically produce better results.

Instead, the appropriate treatment plan depends on each individual's facial anatomy and treatment goals.

XERF 300 shots may be considered for patients who:

• Primarily want to improve the jawline.
• Have relatively mild or early skin laxity.
• Wish to focus treatment on specific facial areas rather than the entire face.

On the other hand, patients with more extensive facial laxity or those seeking comprehensive full-face treatment may benefit from a higher shot count after careful evaluation.

Ultimately, choosing between 300 shots and 600 shots is less important than determining the amount of energy appropriate for your individual skin condition.

When Can You Expect to Notice Results?

Many patients notice their skin feels smoother or more refined immediately after treatment.

However, collagen remodeling continues beneath the skin long after the procedure.

As a result, improvements generally develop gradually over time.

Typical progression may include:

• A feeling of firmer, smoother skin immediately after treatment.
• Gradual improvement in skin firmness over approximately 1–3 months.
• Individual variation depending on skin characteristics.

The timing and extent of improvement depend on factors such as skin thickness, degree of aging, and lifestyle habits.

How Long Do Results Last?

The longevity of XERF 300-shot treatment varies from person to person.

In many cases, results may last approximately 6 months to 1 year, although several factors influence duration, including: