If you're talking about the thing for the laundry, either try Carbona's brand (it's been around for at least 7 years) or else just add a scoop of Oxiclean into your wash.
I stopped using the Carbona dye catcher about the same time I started using the Oxiclean - both keep the excess dyes off your clothes (at least I haven't seen anything on my clothes with the Oxiclean) but the Oxiclean also powers out stains & works better with whites than bleach.
