Does It Work? There is no serious research that suggests mewing can change the shape of your jawline or help with other issues. Experts say it's unlikely you'll see any permanent change.

Does mewing actually work?

Mewing is a technique that proponents claim can reshape the jaw over time. Mewing involves placing the tongue on the roof of the mouth, which supposedly will reshape the jaw over time. There is currently no scientific evidence to prove that mewing is an effective technique for reshaping the face.

What does mewing do to your face?

Mewing is supposed to work by making your jawline more defined, which can help shape your face and perhaps make it look thinner, too. While Dr. Mew is credited with popularizing the technique on the internet, these exercises weren't actually created by the orthodontist.