Sagging cheeks/jawline/double chin after jaw surgery and weight loss at 25. What are my best options? (Photo)

my younger clients typically do morpheus and facetite to get tightening with fillers or threads however, an early facelift/necklift can be done. please see an expert, liposuction alone will not Improve this.
With significant neck sagging you would need a neck/face lift with muscle tightening (platysmaplasty). at the same time lasers (fraxel,  co2 or erbium( or microneedling RF (fractora, intensif) can be . performed to improve the crepe skin or wrinkles.  You need a formal consultation, as the neck can be treated with a combination approach:
1. micro needling and lasers for texture
2. botox, disport or xeomin to help platysmal bands
3. intensif or fractora RF microneedling for crepe skin and lifting
4. fillers like belotero, restylane silk, juvederm volbella to improve lines and folds
5. neck/face lifting if sagging is prominent or early starting +/- platysmaplasty (muscle tightening)
6. J plasma/Renuvion, thermiRF, inmode facetite for internal tightening
7. ultherapy and thermage for external tightening
8. regular Venus legacy, exilis ultra, or inmode forma treatments with facials to maintain tightness
9. PDO novathreads or silhouette instalift cone threads for lifting and long-term collagen production
see an expert for a full evaluation and treatment plan based on your individual situation and goals.
Best, Dr. Emer

If you had a sliding genioplasty for chin reduction this commonly creates a submental bulge due to soft tissue shifting as well as the bony wings of the genioplasty disrupting the normally smooth jawline. This is best treated by an inferior border shave of the chin and a submentoplasty to debunk the fullness. If you feel the chin is now horizontally short a small chin implant can be added. Obviously a reverse sliding genioplasty can also be done, which treats the root of the problem, but that may be more than you are motivated to do given your history. From a cheek standpoint that is the result of the subperiosteal stripping of the tissues, the bony movement and the poster swelling all which work to create the cheek sagging. Options include small cheek implants for volumetric addition or a cheeklift but the lift will not add volume which is really the crux of the problem.