How to Get Rid of Vertical Lines on the Eyebrows, Not Between but on the Actual Eyebrow

Vertical lines within the eyebrow can be treated with a soft filler (Jevederm. Restylane, or Belotero) or with a neuromuscular toxin (like Botox, Dysport, or Xeomin). One or both may be used depending on the location of the wrinkle and your anatomy and skin characteristics.

I do not inject Botox immediately above the eyebrow for vertical lines. These are often present in sun-damaged individuals and may be created by both frowning and sleeping on one's side which pushes the skin from the temple towards the middle of the face.

A thin filler is recommended, such as the hyaluronic acid, Belotero for these lines. Botox injected here can cause a lowering of the eyebrow and upper eyelid skin that is both functionally and aesthetically unsatisfactory.

There can be risks with any filler injected in the skin of the face, and especially around the eyes so discuss this carefully with your physician.

The information provided in Dr. Shelton's answer is for educational purposes only and is not intended to constitute medical advice.  The information provided should not be relied upon as a substitute for consultations with a qualified health professional who may be familiar with your individual medical needs.

The lines within the eyebrows tend to be more static lines compared to the lines between the brows which are more movement related. Pressure from sleeping will make these brow lines worse. A filler such as Restylane, Juvederm or Belotero would be the most beneficial. I would perform a filler in conjuction with Botox or Dysport to decrease the muscle pull and soften the area around the brows. Additionally, trying to sleep on your back will help extend the results of your treatment.

You should consider posting images showing your areas of concern, but based on your description, it sounds like you might benefit from Botox injections on a regular basis. Lines in your actual eyebrow could be caused by continued frowning or expressive movements. With regular treatment the muscle is weakened and less able to pull or draw in, contributing to the static lines that have potentially formed.

You need to be assessed to see if your lines are caused by movement or pressure from sleeping.  Both causes can be treated with fillers such as Restylane or Juvederm, but if movement is involved, Botox can also be used.