Enlarging and shaping a chin with the use of hyaluronic acid is recommended to patients with a retracted jawbone. The treatment involves bringing back proper proportions within a face area. Additionally, by depositing the acid in a specified part of the chin, the look of the whole face can be altered. Applied in a central area of a chin, it gives the face a more female look; deposited in side parts it makes the face look more masculine. In case of significant activeness of a chin muscle the treatment should be preceded with a botulinum toxin injection.