I'm female but my forehead is flat. Can doctors use Radiesse or any hydraulic acid filler to create a rounder forehead? (Photo)

This is something I do often with HA fillers to create a rounder forehead or Belafill which is more long term and collagen based.  You need a formal consultation with someone who is an expert in filler treatments.  Best, Dr. Emer.

Sculptra® injections may be the best choice to slowly round the forehead via stimulating one's own collagen. As this is an advanced injection technique, please consult a board certified aesthetic dermatologist for a consultation.  

The short answer is that yes, Radiesse or another dermal filler could be used to create a rounder look to your forehead. However, this is a very delicate area and requires a great deal of expertise to treat. Please find an board-certified dermatology injector with expertise in contouring the face using dermal fillers such as Radiesse.

Thank you for your photos. Filler in the forehead can be performed safely by an experienced injector. This area is considered off-label for all available fillers, but it can be done with great results to improve the roundness of the forehead, particularly on profile view. My preference is with a thicker gel such as Juvederm VOLUMA which lasts longer and is better at lifting the tight skin of the forehead. Hope this helps!Johnson C. Lee, MD Plastic Surgery

Fillers can provide good results for what you are seeking but be careful. this procedure is not easily performed so be sure you see a board certified dermatologist or plastic surgeon well versed in the use of the materials. In LA call Mark Rubin MD