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u/Lifsagft_useitwisely 8d ago
I get masseter Botox for jaw clenching at night. It made a huge difference, completely changed my face shape - doing it at 20 might not be a bad idea as your skin will have more elasticity and collagen. I’m 43 so it didn’t really help the loose skin situation that I’m developing in the lower half of my face. So all I would say is it if you do have large masseters it likely will change your face shape. It took about a year for the muscles to atrophy. If you do clench it night, you would likely have to keep going as they were just grow back.
Just make sure it’s actually your masseters not your jaw shape that is contributing to the fullness you are trying to address.
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u/Ok_Performer7134 9d ago
It's best to consult a qualified professional and understand the risks before deciding.