I tried a rememdy recommended by a previous post and it worked great on whites. I don't know about colors, though. For the whites, mix a couple of scoups of "Oxi-Clean" with hot water in a sink, etc. Add clothing and let set over night. Launder as usual. It removerd old set in persperation stains. I also tried it on old, set-in blood stains and it removed 95% of therm.