There are some skin whitening creams that contains natural extracts from the root (in the other section of the article) as well as a protein extracted from animal hair - specifically sheep's wool. Skin cell production has been shown to be stimulated while blocking the manufacturing of melanin to some degree. This results in skin that renews itself more often which equals lighter skin... in a most natural way.
Your epidermal cells / skin layers are always growing and dying. The outermost layer of cells is constantly flaking away, naturally without assistance from you or any outside treatment or chemicals. The deeper layers are always making new cells to take their place. Nonetheless, cell production tends to slow down as we age. Hydrating the skin from within is our best defense.
The most common component of many skin whitening cream is hydroquinone, not to the same as ubiquinone, which is coenzyme Q10, a very effective antioxidant. The best skin whitening lotion contains coenzyme Q10, because of its anti-wrinkle effects.
Other skin whitening creams that are very effective contain (and natural) such things as red cactus extract, oils, beeswax and even pure clays.