Hi, I am 20 years old, my face color and other part of the bodys color is dfferent, my face has become very dark now, its just look like that i have painted my face with black color, my neck is also not dark in color, i have used many creams and soaps also, moreover i am having pimples and dark spots on my face, when pimple comes it leaves dark spots after healing, so please recommend me some good product.