How many units of hyaluronidase are usually needed to dissolve a Vycross filler?

Hi doctors, I'm having trouble dissolving a vycross filler, juvederm volux (25 mg vycross hyaluronic acid). I know that in many countries this filler has not yet been approved by the FDA, it should be similar to voluma, but more robust and denser. How many units of hyaluronidase are usually needed to dissolve a stubborn vycross filler? Is a filler injected under the muscle (and above the bone) more difficult to dissolve? I really need help because this stressful situation is affecting my life.