Do I have a weak chin/underdeveloped jaw? What would you recommend to improve profile? (photo)

Thank you for your question. It is difficult to assess simply from a picture whether or not chin augmentation would benefit you. There are both surgical (such as mandibular implants) and non-surgical (such as injectables) options available, and choosing which one is right for you depends on your facial structure and desired result. I recommend a consultation with a board-certified facial plastic surgeon who can examine you and recommend the best course of treatment. Best of luck!

Based on this single photo, it appears that augmentation with chin implant would help. In person consultation with a board certified plastic surgeon with good reputation in facial implants is recommended. Good luck.

To determine whether chin augmentation may look good to you, you need to have computer imaging done of various amounts of different chin projection increases. Biting down on the lower lip actually makes one protrude the lower jaw a bit so some degree of chin augmentation has been proven to be the corrective approach.