Sorry for the pp. I was testing as the system was not letting me post responses. Regarding the atsko I think I am going to buy a blacklight so I can take it with me to the store when buying clothes so I can see how much brightners come on it from the factory. I am glad it worked a little but I would like to start out with as little as I can. Curious, if you use the blacklight say in a well lit store will it still show the brightners well, or does it need to be in a dark room.