29 year old, is asymmetry & sagging lower face fixable with facelift? (Photos)

Hello and thank you for your question. From what I can tell based on the pictures you have provided, you have a well defined jawline and no significant jowling. You do not have excess neck skin, visible plastysmal banding in your neck, or lower face/neck wrinkles. The only thing I can see is prominent tear troughs, much more noticeable on the right than the left. Based on all that and on your age, I would recommend only soft tissue enhancement to soften the lower eyelid/cheek junction, and potentially also augment the upper cheeks (if you desire). You can use this to correct asymmetries and improve facial harmony and refine the face shape to give a more youthful appearance. You should definitely hold off on something as invasive as a facelift for now, as it would not really provide any noticeable benefit at this time.
When it comes to soft tissue enhancement, the main options I recommend are dermal fillers or fat grafting. Fat grafting adds volume to specific areas of your face by taking the fat from your abdomen or thighs, and injecting it into your face. This is your body's own natural tissue, so you don't have to worry about rejection or reactions to the injected material. Once the fat "takes" (lives and integrates into the new injected site), the results last a long time. This differs from hyaluronic acid (HA) filler, the most common type of dermal filler, which typically degrades over about a 12 month period, meaning you need periodic re-injections to maintain the results.
It is very difficult to provide tentative surgical recommendations, especially since there is only so much information to be gained from the limited photos which you have provided. I recommend for you to come see me or another plastic surgeon for a formal consultation to thoroughly discuss your surgical goals, undergo a formal examination, evaluate all your options (surgical and nonsurgical), and decide on the best procedure(s) for your specific case. I hope this helps!
Best wishes,
Dr. Donald Groves
Plastic Surgeon

I believe that you would be a fantastic candidate for a facelift and necklift. It might be too early but it would certainly address your concerns.

Thank you for your question and for providing photos. While you don’t appear to be a surgical candidate, you may enjoy the benefits of a liquid facelift to improve symmetry and enhance your natural beauty. While perfect symmetry is impossible to attain, liquid facelifts use a combination of dermal fillers and neuromodulators to fill and lift the face and balance the facial features. The most natural results are achieved by targeting the specific fat pockets that have lost volume, so an in-person consultation with an experienced, expert injector is recommended. They will be able to discuss your concerns with you and suggest the best procedure to help you achieve your aesthetic goals.