Myofunctional therapy strengthens oral musculature, improves lip seal, and promotes nasal breathing in adults, but may not correct significant skeletal discrepancies.

“there are myofunctional therapists which I they're the best and they're really important in this conversation think of them like physical therapists for breathing teaching you to keep your lips closed your tongue up all of this musculature is really important toning it um if you don't use it you lose it so if your mouth breather your tongue will lay low your tongue's a muscle it will get weak it will get flaccid so we want to strengthen these muscles to help with lip seal and nasal breathing but as an adult if you do have a skeletal discrepancy you usually you need some sort of intervention you're not going to just be changing it through lip taping or how you're training or myof functional therapy”