Hi, I performed many facial shaping procedures using dermal fillers and facial implants (Cheek implants, chin implants, lip implants) over the past 30 years. You question really has two parts. The first part is whether shaping your chin with a dermal filler or a chin implant will give you a heart shaped face? The answer is an emphatic no! For over 3 decades, I have formulated beauty principles of the face and body, that among other things, established that women look the most feminine, youthful and attractive with heart shaped faces. All heart shaped faces have cheeks that are full and round in the front. The chin, whether weak or properly projected (discussed below) doesn't have the aesthetic ability to create full, round cheeks in the front of the face and as such no ability to create a heart shaped face. If we look at the attached pictures, your face is an elongated, rectangular shape. This occurs because your cheeks are very flat in the front. Cheek augmentation with a dermal filler or using cheek implants for a permanent enhancement will create full, round cheeks that will feminize the entire face and create a heart shaped face. Now let's discuss your chin. Looking at the photos, especially the profile it appears that your chin is quite weak. This is evidenced by the lack of forward projection of the chin using an imaginary line drawn down from the "lower" lip as you seem to be demonstrating in one of the photos. When the chin is weak, this creates an imbalance making the nose appear larger, the mid face top heavy, the lower face appears short, lip fullness is de-emphasized and early formation of a "double chin" occurs. Chin augmentation using either a dermal filler or a silastic chin implant will add projection to the chin creating harmony and balance to the lower face. I have found that placement of a silastic chin implant, through a small curved incision under the chin (also allows excess skin removal) to be very safe, quick and highly effective...can be done in 30 minutes or less often using a local anesthetic alone. So to summarize, your chin is indeed weak and it can be augmented using either a dermal filler (temporary results) or by placement of a silastic chin implant for a permanent enhancement. There are specific sizes and shapes that I prefer using and belief that the implant is best placed through a small, curved incision under the chin (not through the mouth that has unwanted side effects). This is far less invasive than a sliding genioplasty which requires bone cuts, metal screws or plates. In my humble opinion fat transfer, despite its recent popularity offer far less of a reliable volume than an off the shelf dermal filler or a chin implant and for that reason, I do not use fat to shape the chin, cheeks or jaw line. Next is that you are correct as a woman in seeking a heart shaped face. This can only be accomplished with cheeks that are properly shaped: and these are cheeks that are shapely, full and round in the front. Your face currently is rectangularly shaped but cheek augmentation using either a dermal filler (again provides temporary results) or using cheek implants for a permanent enhancement can create cheeks that are full and round in the front thereby softening and feminizing the entire face by making it heart shaped. When using silastic cheek implants it's paramount that the proper size, shape thickness and placement of the implants is achieved in order to create the proper aesthetic cheek shape. Hope this helps.