Ultherapy is not FDA approved for the hands. But, like other areas of the body such as the knees or the thighs, Ultherapy can tighten and stimulate collagen in this area. I usually prefer to use Radiesse or Sculptra for the hands as these injections tend to thicken the skin and give a very consistent result.
I agree with posted comments that it is not currently recommended for treatment of the hands. Cosmetic options depend on what you want to achieve. Are there dark spots you want to remove? Are you concerned about the "wrinkled" look or the prominence of "veins" on the backs of your hands? The treatments recommended (Lasers, FotoFacial, fillers, bleaching agents, etc.) are determined based on what specific problems you are having. Please contact a board certified dermatologist or plastic surgeon for a consultation on what would be best for you. I hope this helps!