don't know the exact name of the lightening part but I do now know that I had only one age spot on my hands. the rest were freckles. did help make my hands look more youthful aka less wrinkles
I don't know the ingredient in it that lightens the spots, but it does. Takes about two weeks to notice the fade. They don't go away, they are just not as prominent. I would not use this as a sunscreen, it is not strong enough. You need at least a 30 for direct sunlight. I used it on my arms for the spots. I always have used sunscreen on my hands, so they are fine, but I was not so careful with my arms. hope that helps!
answered 4 months, 1 week ago