Remedies for age spots include over-the-counter treatments containing glycolic or kojic acid, which work by fading the spots. Effective options that require a doctor's assistance are cryotherapy, dermabrasion, laser resurfacing, retinoids and bleaching creams, as stated by Mayo Clinic.
In cryotherapy, liquid nitrogen is applied to the age spot. This destroys the pigment of the skin, forcing it to repair itself. As it heals, the age spot becomes lighter in appearance.
Dermabrasion literally sands the layer of skin away so that a new layer of skin is forced to grow. This new layer reduces the appearance of the age spots.
Laser resurfacing destroys the top layer of skin, causing new, evenly colored skin cells to be created, as reported by the American Society for Dermatologic Surgery.