I know someone who tried a prescribed cream, which made no visible difference. A suntan would hide them temporarily, but of course would probably make them worse in the long run.
If you want your age spots to be less noticeable, treatments are available to lighten or remove them. Since the pigment is located at the base of the epidermis — the topmost layer of skin — any treatments meant to lighten the age spots must penetrate this layer of skin.