Our office offers Lumecca photothermolysis, or intense pulsed light, to treat the age spots not only on the arms and legs but also on the face. Following the treatment, spots usually will darken over the next 24-48 hours. Within the week, the pigmented lesions flake off, leaving an even skin tone. You will need to avoid direct, excessive sun exposure or tanning one month prior to and a few days following the treatment. Schedule a consultation with a board certified plastic surgeon or aesthetic dermatologist who offers this treatment. You may only need one session, but that will depend upon the number and size of the dark spots.Kenneth Hughes, MD, Board Certified Plastic SurgeonLos Angeles, CA