Who uses self-bleaching cream???

Apparently the police found dozens of bottles of a skin bleaching cream in the house of the late Michael Jackson...? Now, I've heard of self-tanning lotion - a quick and not so good way of getting a tan when there's no sun. But self-bleaching? I've never even heard something like that existed. Who the hell, except Michael Jackson, would want to make their skin paler?

I'm totally flabbergasted.