Hi and thank you for your question! There are 2 types if hyaluronidase available in the US that can be used to dissolve hyaluronic acid fillers like Juvederm. Both types work and are equally effective, but I only use the newer form (Hylenex) since it’s recombinant and not derived from animal sources and unlike the other type (Vitrase), doesn’t routinely require allergy test. I hope it helps and good luck!
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