I am currently trying to find the best skin whitening cream/ lotion from natural active agent. From my reading, I found that mercury and hydroquinone is a dangerous chemical whitening agent that is widely used in skin whitening product in the market. I really don't want to use that kind of things in my face. Do you have any suggestions of product? I found that some of the product used kojic acid. Is it good? Any experience with kojic acid product? Thank You