Botox injections to decrease shoulder muscle/create a more feminine neckline? (photos)

Botox to this muscle would help it relax, but wouldn't necessarily decrease its size. In my practice we do a combination of VASER and ThermiRF, sometimes even adding ultherapy and fraxel in order to rejuvenate the neck area, which would help its appearance.  Best, Dr. Emer.

I would avoid this as it is very much out of the remit of researched and safe injection zones. Botox can be used for larger muscle groups but for conditions such as cerebral palsy and increased muscle tone after strokes by neurology specialists. 

The reason why you see this in places like Korea but not in US is because we have medical liability and we will be sued as this is not an established treatment and will likely lead to shoulder and upper arm or back weakness and then you will want to sue the doctor for malpractice because he should have known better. No such problems for doctors in korea, Philippines or other countries where doctors can experiment on people without an approved IRB.