Is there a way to tighten the skin around your masseteers?

[Kiernan Sheridan]

This might be retarded, but I have a good jawline, and when I me it tightens under my neck but I want the skin around and under my masseters to tighten

 

[jotunnr]

This might be retarded, but I have a good jawline, and when I me it tightens under my neck but I want the skin around and under my masseters to tighten

Collagen

 

[WilhelmThyWizard]

CHIN TUCKS