Since they are synthetic they can't be dyed using regular dyes like punky colour, manic panic, adore etc. You can buy a liquid fabric dye and then In one gallon of water, dissolve 4 oz. of dye. Submerge it in the dye and let it soak for at least 45 minutes. Continue this process until you have reached the color you want and then Rinse well and then condition It's a process if you want to dye them lol.