After one week, in my experience, you do not see and cannot find the opening signifying the location through which liposuction of the neck is accomplished. These tiny marks disappear quickly and completely. Facial exercises will NOT tighten loose skin, but will add wrinkles... After all, Botox, Dysport, and Xeomin relax facial muscles to soften or eliminate wrinkles, so it stands to reason that exercising muscles will magnify wrinkles, does it not? Tightness of the skin following neck liposuction depends on how tight (or loose) and how elastic the skin is, and how much fat is removed. Very often, neck skin tightens significantly after liposuction of the neck to contract around the smaller more well defined contour that results after fat removal.