Frown lines between the brows.

Frown lines are usually vertical creases between the eyebrows, in an area called the glabella. They form as the muscles draw the brows together and fold the skin, as described in the facial anatomy reference.

Repeated folding can leave a crease in the skin even after the muscles relax. As skin ages and accumulates sun damage, it can show wrinkles more readily. You can have both movement lines and a resting crease in the same area. A line between your brows does not prove that you are still frowning or feeling stressed or angry.

Yes. Frown lines sit between the brows and become more pronounced as you draw them together. Forehead lines run horizontally above the brows as you lift your eyebrows. The areas move together during expression, so Corey checks the surrounding forehead, brows and eyelids even when your main concern is between the brows.

These steps care for the skin, but they cannot be relied on to erase a deep crease or prevent the skin folding when you frown. The American Academy of Dermatology gives the relevant skin-care limits.

A deep resting line involves a crease in the skin, not just the movement that folds it. That is why reducing how strongly the area moves would not necessarily remove the mark. Corey checks the line at rest, skin quality and brow movement before explaining what might change and what may remain. Depth alone does not establish which option is suitable. Complete removal cannot be promised, and you can decide that a limited change is not worth the risks or cost.

The muscles around the frown area also contribute to brow position; see the brow-muscle anatomy reference. Corey checks how your brows sit and move, and asks about eyelid heaviness or changes after earlier care. Explain what you want to keep, such as your usual expression when concentrating. Preserving a familiar expression is a preference to plan around, not an outcome anyone can promise.