Because of its name, upper lip raiser is considered the go-to action for lifting the top lip and tends to get overused in art and tech, acting as a replacement for nasolabial furrow deepener or a shortcut for showing teeth during smiling. Despite its name, upper lip raiser is not the only lip-raising action! In fact, applying upper lip raiser to contexts better suited for nasolabial furrow deepener can be detrimental to the essence of a target expression.