There are a few ways to even out skin tone in Photoshop, but the most common is to use a light and dark color palette. This will make your skin look more even and give you a more natural look. Another way to achieve this is to use the Hue/Saturation tool. This will give you control over how much color you use on your skin, which can help make it look more balanced. Finally, you can also use the Blur tool to soften or remove any unwanted wrinkles or lines on your face.