The 5 Best Jawline Exercises for a More Defined Chin

Put your chin to your chest and elevate your head 2 inches. Avoid lifting your midsection or chin. Start with 3 sets of 10 repetitions and increase.

Neck curlup

Bring your head back several inches while keeping your head level with the floor to tense and release throat muscles.  First do 3 sets of 10 repetitions, then hold for more than 30 seconds.

Collar bone backup

Put your tongue on your roof of your mouth behind your teeth.  Increase tension by pressing your tongue to shut the roof of your mouth.  Start buzzing and vibrating.

Tongue twister

Then, with your lips wide open, pronounce "O," and then come back with "E." As you make these noises and actions, be sure to exaggerate them, and avoid showing or touching your teeth.

Vowel sounds

Shut your mouth, extend your lower jaw, and raise your bottom lip.  A stretch should develop in the area right below the chin and along the jaw.  Ten to fifteen seconds of holding the pose, then let go.