From Vials to Pre-Filled Syringes: The Evolution of HA Fillers
In the early days of hyaluronic acid fillers, these anti-aging products were typically supplied in vials. Practitioners would need to manually draw the product into syringes before administering injections, which could be a bit of a hassle, especially with thicker, more dense fillers. The process of drawing these high-density fillers could be slow and required …