Botox is injected with a small needle in tiny amounts to specific areas. Botox is usually sold to clients by the unit. The number of units necessary for an effective treatment varies, both by the individual and the area treated. Men usually need a few more units than women to achieve the same effect. At Evolutions, it is common to use 20-24 units of Botox for the glabellar region (the frown lines), 10-14 units of Botox for the forehead, and 10-14 units of Botox for the peri-orbital area (“crow’s feet”). If you have had a Botox in any of these areas and have received significantly more units, you may have received more Botox than is necessary for an effective treatment.