What is the ruling on a man using skin-whitening cosmetic products?

The rulings regarding men's use of cosmetics vary: Men should not use them merely for beautification and adornment. It is not permissible if they are specific to women's adornment (as this constitutes imitation). If the change in skin color is temporary, there is no harm; however, if it is permanent, it is not permissible. It is permissible to use them to remove blemishes like acne, as this falls under the category of seeking treatment. It is not permissible to use products made from impure or harmful substances.