Single frown line between my brows: does Botox not have to be administered right onto the frown line?

Botox needs to be administered into the muscle causing the line. Keep in mind, it can take 1-2 weeks for final results with Botox. See an expert. Best, Dr. Emer

The vertical frown lines are caused by the actions of several groups of muscles (pairs of brow depressors) which cause the brows to move down and medially (towards each other). This will create the "11" vertical lines (horizontal contraction of muscles creates vertical skin lines). The procerus single muscle contracts in a vertical fashion and creates horizontal "11" lines in the region between the root of the nose and the mid brow. All these muscle groups are typically injected for treatment of frown lines. Botox will be distributed to the body of the muscles so the exact injection location in relation to the skin wrinkles is not important. It is important to inject the target muscles so their action is weakened and this will result in softening of the lines.