It would be more ideal to answer this question if you provided a photo and/or gave your age. injectable fillers such as voluma and restylane Lyft are best used for the upper mid face (cheek area). Fillers can be used for the lower face in areas such as the pre jowl sulcus to smooth out jawline definition , but they won't have much effect on lifting the jowls. Under the chin area treatments like kybella and Coolsculpting can reduce fatty tissue and submental fullness , but will not address wobbly skin. To really improve jowls and or skin in the neck , a lower face lift /and or neck lift maybe required . If you are under 50 years old, this may not be the best route to choose, alternatives include Ultherapy or infini and thermitight. These treatments can tighten skin without surgery. I like ultherapy/infini for patients mid 30's to early 50's, and Thermitight for patients mid 40's to late 60's. There are multiple routes to choose, but in general the more invasive treatment you choose , the more dramatic and longer lasting the results you will achieve.