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Facial contour & jawline

Care guide by concern

We assess the jawline, lower-face shape and muscle changes when you clench. We also ask about discomfort with chewing or jaw movement.

Does a broad-looking jawline come from muscle or fat?

We assess the jawline, lower-face shape and muscle changes when you clench. We also ask about discomfort with chewing or jaw movement.

If this sounds familiar

  • My lower face looks wider in side and angled photos than from the front
  • I tend to clench my jaw, and my jaw muscles feel firm
  • Fullness under my chin makes my jawline look less defined
  • I've looked into V-line procedures, but there are so many types it's confusing

What causes and skin changes are assessed?

  • 01We first assess why the jawline looks different
  • 02Jawline botulinum toxin targets the masseter

Facial contour & jawline: common questions

Can botulinum toxin change every square jaw?

An enlarged masseter differs from a shape mainly caused by bone, fat or sagging. Botulinum toxin targets the muscle, so assessing the cause comes first.

Can I consult if using my jaw is uncomfortable?

Yes. Please mention chewing discomfort or jaw pain before selecting a procedure. Function and your current condition are assessed together.

Results and recovery vary from person to person.

Before choosing treatment

What to expect and consider

We first assess why the jawline looks different

Masseter muscles, elasticity and volume call for different approaches. Muscle reduction and skin-firming treatments have different effects; an examination guides selection. [1][2]

Jawline botulinum toxin targets the masseter

Research has assessed botulinum toxin for enlarged masseter muscles. This does not mean it reshapes faces whose main concern is bone or fat. Possible chewing discomfort also needs discussion. [1]

Studies and sources 2
  1. 1. Randomized, double-blind, placebo-controlled trial · 2021

    Botulinum toxin for masseter size

    The study observed masseter thickness and lower-face contour changes.

    Study population
    90 people with masseter hypertrophy; a specific botulinum toxin product
    Limitations
    This is not evidence for facial shape caused primarily by bone or fat. Product-specific dose findings cannot be applied to every product.
    Read the source · PubMed 33347002

    Efficacy and Safety of a Novel Botulinum Toxin A for Masseter Reduction: A Randomized, Double-Blind, Placebo-Controlled, Optimal Dose-Finding Study. Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] (2021).

  2. 2. Systematic review and meta-analysis · 2020

    Focused ultrasound for facial and neck laxity

    The analysis reviewed studies assessing improvements in facial and neck laxity.

    Study population
    17 studies involving 477 people receiving focused ultrasound to the face or neck
    Limitations
    Assessment methods and follow-up times differed, with limited long-term data. The review does not establish brand superiority or equivalence to surgery.
    Read the source · PubMed 32026164

    Systematic review and meta-analysis of safety and efficacy of high-intensity focused ultrasound (HIFU) for face and neck rejuvenation. Lasers in medical science (2020).

General information based on external research and guidance. It does not represent an individual diagnosis or this clinic’s results.

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