To improve the shape – if you are happy with your lip volume but would like a more defined shape, dermal filler can be used in the outside parts of the lips.
To increase volume – if you would like fuller lips, dermal filler can be used to increase the overall volume, ensuring they are kept in proportion to each other and to your overall facial appearance.
To increase volume and improve shape! Dermal fillers can be used to fulfil both of these goals at the same time.