Can I Reuse Left Over Hyaluronic Acid Filler?

Hyaluronic acid (HA) fillers are used to plump up thin lines, deep expression wrinkles, and improve the global descent of the facial soft tissue. Typically, they are administered with a syringe or cannula and providers are instructed to discard any remaining filler left in the application device. However, fillers are expensive, so saving the leftovers …