Dark Spots can be one of the most frustrating skin concerns to tackle, as hyperpigmentation can be incredibly difficult to fade. If you are struggling with this in particular, you may want to check out the Proactiv Dark Spot Corrector. The main thing to note about this product is that the main dark spot lightening active is hydroquinone. Hydroquinone is a bit of a controversial ingredient because with consistent usage for more than a couple of months, there is a small risk that you could develop a rare skin condition. With that said, this risk is very small, and almost all users can completely avoid this risk by using this product in 2 month intervals. At a 2% concentration, along with the rest of this formula, hydroquinone can make a noticable difference in the appearance of your dark spots, age spots, post-acne marks and other forms of hyperpigmentation.