In this video, we learn how to use PhotoShop to change hair color.. First, select the mask tool inside PhotoShop. Now, zoom in on your picture and brush the hair that you want to change the color of. Zooming in and using smaller or bigger brushes will help you be more precise. After this, zoom out and press on the mask tool to create your selection. Then, select the marquee tool and right click and choose "inverse selects". Now, click on "image", "regulations", then "tonality/saturation". Now...