Korean Jawline Slimming Injections

December 6, 2025

Jawline slimming injections are one of the most popular non-surgical facial contouring treatments in Korea. If you want a slimmer, softer lower face without surgery, this treatment is a fast, effective way to achieve the coveted Korean “V-line.” Korean dermatology clinics specialize in precise jawline contouring using masseter-relaxing injections that subtly reshape the lower face while keeping results natural.

This guide explains how jawline slimming injections work, what results to expect, and why Korea is one of the best places to get them.

What Are Jawline Slimming Injections in Korea?

Jawline slimming injections use a neuromodulator (commonly called “Botox”) to relax the masseter muscles — the chewing muscles located at the sides of the jaw. When these muscles are overdeveloped, they create a wider, square-shaped jaw.

By relaxing these muscles:

  • The masseters gradually shrink in size
  • The lower face becomes narrower
  • The jawline looks softer and more refined
  • The overall face shape shifts toward a natural V-line

This is a non-surgical, low-downtime approach to jaw contouring that has become a signature Korean treatment.

Why Jawline Slimming Is Popular in Korea

Korea’s beauty trends emphasize a smaller, more tapered lower face. Because many Korean patients have strong masseter muscles from chewing habits or genetics, this treatment became a culturally beloved solution.

Key Reasons for Its Popularity

  • Fast, subtle contouring
  • No downtime or visible marks
  • Natural improvement without drastic facial change
  • Precise injection techniques from highly trained dermatologists
  • Affordable compared to surgical V-line contouring

Korea’s aesthetic market is extremely competitive, so clinics offer sophisticated injection plans and natural refinements that appeal to both locals and international patients.

What Results Can You Expect?

Jawline slimming injections do not change bone structure but instead reduce muscle bulk. Results appear gradually as the muscle relaxes and shrinks.

Timeline

  • Light improvement: 2–4 weeks
  • Noticeable slimming: 6–8 weeks
  • Peak effect: around 10–12 weeks
  • Longevity: 4–6 months

Many patients choose maintenance injections twice a year to maintain their V-line shape.

Who Is a Good Candidate?

You’re a great candidate if you have:

  • Bulky or overdeveloped masseter muscles
  • A square or wide lower face
  • Tension from teeth grinding or clenching
  • Desire for subtle, natural contouring without surgery

You may NOT be a good candidate if your wide jaw is caused by:

  • Bone structure
  • Excess lower-face fat
  • Sagging skin (in which case lifting treatments may be better)

Jawline Slimming vs Other Korean Contouring Treatments

Korean clinics often combine jawline slimming injections with other treatments for enhanced definition:

  • Chin filler for a sharper V-line
  • Under-chin fat dissolving injections for a cleaner jaw contour
  • HIFU lifting (Shurink, Ultherapy, Liftera) for jaw tightening
  • Facial contour injections to reduce puffiness
  • Thread lifting for sharper definition

This layered approach is why Korean contouring tends to look so natural and balanced.

Why Korea Is the Best Place for Jawline Slimming Injections

  • Highly trained dermatologists who specialize in facial proportions
  • Advanced injection techniques for natural, precise results
  • Customized dosing based on muscle strength and face shape
  • Competitive pricing
  • Strong emphasis on achieving a soft, harmonious V-line

Korea has perfected the art of non-surgical jaw contouring — making it a top destination for anyone seeking slim, refined facial lines.

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