Hello, I have a question about injections with hyaluronic acid. I have Vollbella in my lips, but I moved and I have to go to another place. I visited an esthetician who told me it could be dangerous to mix two different hyaluronic acid (cause they don't use Vollbella, I don't know what they do use). Would it be dangerous to mix differents ones? Thanks a lot for your answers, Amélie
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