
Ideally, in men we want the jaw width (measured at the gonions) to be 85-92% of the cheekbone width.
Typically a measure below 80% depicts a notably narrow jaw and is considered a moderately large flaw.
Method #1: Training Masseter Muscle
Now the caveat with this method is, that some people have poor masseter muscle insertions which can lead to a nonaesthetic result when the masseter muscles are overtrained.
Ironically I believe this to be the case with someone like Brett Maverick who actually sells jawline training gum. His masseters are just too bulky and make his jaw a bit wider than it should be.

Brad Pitt is another example of masseter muscles that simply were overtrained.

Getting some jawline gum or simply chewing and eating meat with your hands will develop your masseter muscles. If your jaw is notably narrow no harm will be done from intentionally trying to get bigger masseters, but if your jaw is already on the wider side that's when it can become less aesthetic.
Logistics:
Average Cost: $10 - $50 (for a pack of hard mastic gum or Falim gum)
Risk Level: Low to Moderate (Risk of TMJ issues, overuse can cause pain)
Reward Level: Low to Moderate (Works best for those with weaker masseters, but bone width remains unchanged)
Overall Value/ROI: 6/10 (Cheap and natural, but results are slow and limited)
Best for:
Those with narrow masseter muscles that can hypertrophy with chewing.
People who want a non-invasive way to enhance jaw width.
Those who don’t mind slow results (takes months to see noticeable changes).
Not Ideal for:
People with already strong masseters (chewing won’t make a big difference).
Those prone to TMJ pain or jaw tightness.
Anyone looking for bone width increase (this only enhances the muscles).
Maximizing Results:
Use hard gum like mastic or Falim gum.
Chew evenly on both sides to prevent asymmetry.
Limit sessions to avoid TMJ strain (e.g., 20-30 minutes daily).
Method #2: Jaw Filler

Best Fillers for Jaw Widening
Radiesse (Calcium Hydroxylapatite)
Best for: Adding structure and mimicking bone for a strong, defined jaw.
Pros: Lasts longer (~12-18 months), firmer consistency, stimulates collagen.
Cons: Not reversible.
Cost: $600-$1,200 per syringe (2-4 syringes typically needed).
Juvederm Voluma (Hyaluronic Acid)
Best for: Moderate jaw widening with a softer, more natural look.
Pros: Reversible, lasts 12-18 months, good volume retention.
Cons: Slightly softer than Radiesse, may require more touch-ups.
Cost: $700-$1,500 per syringe (2-4 syringes needed).
Sculptra (Poly-L-Lactic Acid)
Best for: Subtle, long-term jaw enhancement by stimulating collagen over time.
Pros: Gradual, natural-looking results that can last 2+ years.
Cons: Takes months to fully develop, not instant.
Cost: $700-$1,000 per vial (2-4 vials typically needed).
Logistics:
Procedure Name: Jaw Filler for Width & Definition
Average Cost: $1,500 - $5,000 (depending on filler type and amount)
Risk Level: Low to Moderate (Swelling, bruising, migration if done incorrectly)
Reward Level: Moderate to High (Stronger, wider jawline but temporary)
Overall Value/ROI: 8/10 (Good option if you want instant results without surgery)
Method #3: Jaw Angle Implants

Jaw angle implants are a surgical solution for increasing the width of the lower face by augmenting the jaw angles with solid implants. They provide permanent, structural enhancement, making them the best option for those wanting a significantly wider jaw.
Logistics:
Procedure Name: Jaw Angle Implants for Jaw Widening
Average Cost: $7,000 - $15,000 (varies based on surgeon, location, and implant type)
Risk Level: Moderate to High (Surgical risks include infection, asymmetry, implant shifting, and nerve damage)
Reward Level: High (Provides permanent, dramatic width enhancement)
Overall Value/ROI: 9/10 (Best option for permanent jaw width increase, but requires surgery and recovery time)
Best for:
People with narrow jaw angles who want permanent width.
Those willing to undergo surgery for a dramatic transformation.
People who want a sharper, more masculine, or chiseled look.
Not Ideal for:
Those looking for a non-surgical solution.
People who prefer subtle or temporary changes.
Those who don’t want downtime (recovery takes weeks).
Maximizing Results:
Choose the right implant shape & size (custom implants give the best results).
Ensure your surgeon is experienced in facial implants.
Combine with chin implants or filler if more projection is needed.
Follow post-op care strictly to avoid complications.