Injecting on the forehead is a common request from your patients, but if you don’t know exactly where the muscle is strongest, you’ll end up injecting in the wrong place.

In other words, the best place to inject someone’s face is where the strongest muscle is. You achieve this by searching for the deepest lines in the painting. The patient isn’t learning anything if they’re told to frown so that you can see their lines.

In this case, you can ask your patients to try looking at your finger on the brow with the frontalis muscle you just placed on their brow. Determine where the deepest lines are.

The deepest line will appear in the center of the forehead in some persons and the upper forehead in others. Those are the places where you’ll be injecting yourself. There are a lot of free touch-ups to be done if the lines are high up on the forehead if they are injected across the center. This is going to end up costing you a lot of money.