Time changes many things including our faces as we age. With age our faces start to show effects of gravity, years of facial muscle use (smiling/squinting) and sun exposure. The underlying tissues that keep our skin plumped up begin to break down with passing years.
Dermal fillers (Juvederm/Restylane) can help with filling in lines/creases/cheeks/drooping lower facial areas and plumping up lips for a fuller and younger look.