How many units of botox will I need to reduce the size of my temporalis muscles? They bulge out right along the side hairline.

Without photos and the benefit of physical exam- it's difficult to comment accurately. Once you're examined by an experienced Board Certified PS or Dermatologist- a customized treatment plan will be outlined

The amount of Botox you need is dependent on the strength of your temporalis muscles you wish to have treated. The stronger the muscle the more Botox required to paralyze the muscle to prevent wrinkles and the bulging to which you are referring. The plastic surgeon makes an assessment of the amount of Botox needed in every treatment area based on his experience and knowledge and the strength of the muscle requiring treatment.

Botox paralyzes muscles thereby preventing them from contracting and also having that "bulging" appearance.

Most patients will use 20 units on each side to decrease the bulk of the muscle along the hair line. Sometimes more is needed. I like to inject 20 units on each side and wait 4 weeks and have the patient return to see if the bulk has satisfactorily reduced.