Why is it so hard to remove
Thank you for your excellent question. Because of the hyaluronic acid cross linking found in Voluma it may require several treatments to fully dissolve. Looking at your profile you have had a number of bad experiences with both Juvederm and Voluma and I would recommend seeking a second opinion from a board certified plastic surgeon who can better offer idea recommendations at dissolution. Typically I try to inject 15-20 units of Vitrase for each 0.1cc of Juvederm or Voluma used. Hope this helps.
Voluma and Dissolving with Vitrase
Voluma can sometimes be difficult to dissolve depending on how much filler was placed and the location. It should eventually dissolve on its own and is not permanent. Please consult an expert. Best, Dr. Green