Yes I've had good luck using frankincense oil for removing age spots.
Frankincense oil contains anti-cancerous properties which helps to remove the age spots and reduce wrinkles and helps to tighten your skin as well.
Age spots are also sometimes referred to as Liver Spots and Frankincense Oil does help to diminish age spots and liver spots.
Lemon Essential Oil, Carrot Seed Essential Oil and Sweet Orange Essential Oil are all other good essential oils that work to remove liver spots and age spots as well.