Sunless tanning preparations may be used to darken the vitiligo a more acceptable color. These will cover small areas of vitiligo well. Micropigmentation (tattooing) is rarely recommended. It works best for the lip area, particularly in people with dark skin; however, it is difficult to perfectly match the skin, and tends to look worse over time. For loss of pigment over more than half of the exposed areas of the body, depigmentation therapy can be considered. This is the permanent (or nearly permanent) bleaching out of all pigmentation. The remaining skin will be an even white color, which can then be covered with the cosmetics.