2026-06-04
Arm Fat and Trapezius Muscle at the Same Time? Effects and Precautions of Shoulder Line Injections for a Smooth Upper Body Line
If you are concerned about a bumpy shoulder line in the mirror and stubborn arm fat, the 'Shoulder Line Injection'—a combination of trapezius Botox and arm fat-dissolving injections—can be an excellent solution. We will explore in detail the treatment principles that smoothly refine the neckline, shoulders, and arm lines, along with the characteristics of Botox types like Xeomin and WonderTox.
The Core of the Upper Body Line: Solutions for Trapezius and Arm Fat Concerns
Hello, this is 345 Skin Clinic. Many people experience stress when looking in the mirror due to a bumpy, raised shoulder line or noticeably prominent arm fat. In particular, even with a combination of exercise and diet control, there are limits to self-managing localized fat or an overdeveloped trapezius (the muscle at the back of the shoulder).
An overdeveloped trapezius can make the neck appear shorter and the shoulder line look bulky, while sagging arm fat makes the overall upper body silhouette look heavy. To resolve these concerns, non-surgical treatment approaches that can achieve a smooth line from the neckline to the arms have recently been gaining attention.
What is the Shoulder Line Injection? The Combination of Trapezius Botox and Arm Fat-Dissolving Injections
345's Shoulder Line Injection is a package treatment that refines the overall upper body line by combining trapezius Botox and arm Tox injections (fat-dissolving injections). Rather than simply reducing only fat or only muscle, it aims for a more natural transformation by managing both elements simultaneously.
- Trapezius Botox: Relaxes overdeveloped and tense muscles to create a longer, smoother neckline and shoulder line.
- Arm Tox Injection: Breaks down unnecessarily accumulated fat cells and boosts metabolism to help eliminate waste and form a slim arm line.
STEP 01. Creating a Smooth Neckline with Trapezius Botox
Trapezius Botox is a procedure that temporarily inhibits muscle movement by injecting Botulinum toxin into the trapezius muscle. As the muscle size gradually decreases, you can expect the effect of a raised shoulder line becoming gentle and smooth.
Types and Characteristics of Botox
| Type | Characteristics | Advantages |
|---|---|---|
| Xeomin | Premium pure toxin from Germany | Low risk of resistance development by removing unnecessary complex proteins |
| WonderTox | Domestic KFDA-approved product | Widely used with excellent cost-effectiveness and safety |
STEP 02. Principles and Expected Effects of Arm Tox Injections (Fat-Dissolving Injections)
The arm Tox injection is a procedure that reduces the thickness of the arms by injecting a solution that breaks down localized fat. It acts on the subcutaneous fat layer, which is difficult to remove through exercise alone, and induces the excretion of waste products from the body.
Compared to surgical liposuction, it has the advantage of a shorter recovery period and a quicker return to daily life. It is a suitable option for those who want to achieve a natural and balanced shoulder and arm line.
Precision Diagnostic System for Safe Procedures
345 Skin Clinic utilizes the Mark-Vu Skin Diagnostic System, capable of 4-light source analysis, to closely analyze each individual's different skin type, muscle mass, and fat distribution. Based on precise data, we establish a customized treatment plan tailored to the individual, enhancing both safety and satisfaction.
Pre- and Post-Procedure Precautions and Aftercare
- Avoid excessively rubbing the treated area or receiving meridian massages after the procedure.
- It is recommended to avoid high-temperature environments such as saunas and jjimjilbangs (Korean bathhouses) for about 1 to 2 weeks.
- Please refrain from lifting heavy loads or engaging in exercises that excessively use the shoulder muscles after Botox treatment.
- Mild bruising or swelling may occur at the treatment site, but this usually disappears naturally within a few days.
