What is this vertical ridge in the center of my forehead? After Botox I still can't get rid of it.

It appears as though the indentation is worse when frowning, indicating Botox is required to either side of the ridge. Botox should smooth your forehead. If 2 weeks following treatment you still notice an indentation schedule a consultation for a small amount of filler. An expert injector should be able to give you an accurate treatment plan. 

This would require fillers to treat and there are many options.  I suggest going to a good surgeon for this as there is risk of complications if not performed meticulously.  Best, Dr. Emer.

Hi LFW.  There are many injectors that are averse to injecting dermal fillers in the forehead, but in your case, we believe it's a good option.  There are a few key issues that you or any injector should consider when going down this road.  First all injections into this area (and others) should use a "retrograde" technique.  If you ask your injector if they use this technique and they don't know what to say, that's a bad sign.  Injecting as you remove a needle from the skin helps to avoid injecting the product into blood vessels.  In most cases, occlusion (blockage of blood vessels) occurs when pushing the product out of the needle at the same time that the needle is being moved forward into the skin.Second, only soft Hyaluronic acid products should be used in the forehead and we prefer Restylane.  Finally, for anyone injecting into this area, they should have a healthy supply of Hyaluronidase (Vitrase) on hand.  It's a good idea to have Vitrase around at all times anyway, but particularly important when injecting into the forehead.  Find an injector that's comfortable with this area and ask the right questions during the consultation.  To view an example of before and after pictures for a patient that we treated with Botox and Restylane for deep forehead lines, check the link below.

Central forehead depression after Botox.Wait until Botox wears off and then have it evaluated by an experienced injector. 

The depression seems to worsen with movement suggesting that more Botox may be needed in the area surrounding this depression.  Since it is also present at rest, a small amount of filler could be placed to help volumize and lift this area to the level of the surrounding tissue.  Filler injection in this area should only be performed by "core" cosmetic injectable physicians (facial
plastic surgeons, plastic surgeons, dermatologists, or occuloplastic
surgeons). This is because we all have a keen understanding of facial
anatomy and the effects of injecting Botox/ Xeomin/ Dysport and fillers in different
regions of the face. Be sure you are seeing one of us, and I wish you well!