Dr. Shwetambara Parakh MD, FACS Plastic Surgeon in NYC & NJ [ Ссылка ] shows the advanced technique of injection of Botox into Depressor Anguli Oris muscle. With aging, corners of the mouth sag downwards creating that perpetual dreaded ‘frowny’ look. The DAO muscle is a depressor muscle that pulls the corner of the mouth down. Weakening this muscle with Botox allows a stronger pull of the elevator muscle that allows the corner of the mouth to be pulled up. Fillers may also be required to enhance this area further.

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