rubbing alcohol to drip down the glass door once it has become colored with the hair dye.
blot the dye spots, working to remove the dye as best you can. keep a clean, dry paper towel in one hand to catch any drips that may begin to run down the shower door. use the paper towel to blot the stain every now and then to check to see if it has come off yet.
if your shower door is frosted, you may have a more difficult time getting the hair dye to come off. in this case, make a paste-like mixture of hydrogen peroxide and baking soda. smear the paste onto the 