My 16-year old daughter wishes to use a soap containing kojic acid in order to remove an uneven tan (farmers'  tan) caused by playing sport in the sun. She has a school dance coming up soon and she thinks the uneven tan will spoil the look of the dress she intends wearing, hence her haste to remove the tan. She has done some research on the internet and she told me that kojic acid soap is nothing more than a very effective exfoliator. However, I am still concerned because I fear that she may do some irreparable damage to her skin. She is a white girl with a medium-fair complexion. Any information you can give me will be sincerely appreciated.