Once you stop what’s causing the dark spots or patches, fading can take time. A spot that is a few shades darker than your skin will usually fade within 6 to 12 months.
If the color lies deep in your skin, however, fading can take years. Discoloration that lies deep in the skin is often slate blue to gray in color. It may also be brown, but the brown is much darker than your natural skin color.
Adding products with exfoliants can speed up fading of dark spots and patches. Here is a list of products we recommend. Pick one to start with.