Jaw line undefined and round face and chin. Non-invasive options? (photos)

Hi, I am 35 years old and I have noticed that my jawline is not as defined anymore and I have lost my v shape to a more round shape. I also feel my chin is more round. My jawline from the side looks not very well defined. I heard about a machine who would help with producing collagen and melt the fat and tighten skin. Is this long lasting and helpful? I want a more v-shaped and slimmer face. Non invasive options preferred if long term.