As I understand it lasers rely on being absorbed by the unwanted pigment, meaning you'll have diminishing returns the milder the pigmentation gets. I read a study on RF microneedling used to treat dermal pigmentation from contact dermatitis. It is said the heating from the needles break up the dermal melanophages. It seems logical that this would be more appropriate to eliminate very mild dermal pigmentation (barely discernible), as it should be independent of pigment severity. Any thoughts?