Both the Vibrance and Saturation sliders can be used to boost the saturation in an image. The difference between the two is that whereas the Saturation slider applies a linear adjustment to the color saturation, a Vibrance adjustment uses a non-linear approach. In plain English, this means that when you apply a Vibrance adjustment, the less saturated colors will get more of a saturation boost than those colors that are already saturated. This can be of real practical benefit when applying a saturation adjustment to a picture where you want to make the softer colors look brighter, but don’t want to brighten them at the expense of losing important detail in the already bright colors. In the Figure 1 example, I have demonstrated how a Saturation boost can easily damage the color information in an image. The other benefit of working with Vibrance is that it has a built-in skin color protector that should filter out colors that fall within the skin color range. This can be useful if you are editing a portrait and you want to boost the color of someone’s clothing, but at the same time, you don’t want to over-saturate their skin tones.