Ideally, the projection of the chin in profile view should align more closely to a line drawn from the tip of the nose to the outermost projection of the chin. With this in mind, the use of a robust HA filler appropriately injected into the chin should not only improve this, would would likewise secondarily better define the jawline. Chin augmentation does not simply involve a cookbook style approach of simply counting syringes of filler used. As there are major differences between the ideal contours of female and male chins, you would be wise to consult with an experienced, board certified cosmetic dermatologist, and, make sure to ask to see his/her personal befores and afters before agreeing to proceed. Best of luck.