The number of units varies for each patient. Men and women with deep furrows usually require more than those with thinner skin and weaker muscles. The dilution and placement of the Botox is also crucial. Although some patients will require a somewhat larger dose for an effective first injection, most patients will have a very nice result after 30 units to these areas. To maintain those results, the Botox should be re-injected at least every 3 to 3.5 months. Basically, 100 units is way too much. Hope that helps.
No. Whether you exercise or not, the duration of Botox effect is determined by the dose given (in units), the areas injected, the technique of injection, and the rate at which your body metabolizes Botox. Once the Botox "binds" to the nerve cell, exercise will not affect its duration of action. Will you need more units of Botox given more frequently if your BMI continues to decrease with exercise? Maybe. Good luck.
