Depending on which filler is used, there are particular benefits down the line. For example, when hyaluronic acid fillers are used, they tend to attract water and integrate with surrounding tissues, hydrating the skin from within. If a calcium hydroxylapatite filler like Radiesse is used, it stimulates collagen production in the skin.
By restoring volume in the hands with dermal fillers, the result improves with time. You can help your hands “be younger”, not just look younger.