Actually if you use regualr detergents it will kill the lifespan of the microfiber making it lose its magnetic charge that its supposed to have. Also drying them burns off the microfiber too. I probably have about 15 micofiber towels and i was them with Pinnacle Micro Rejuvenator Microfiber Detergent i have also heard about DP Polishing Pad Rejuvenator but i havent tried it. i would reccomend the Pinnacle though. i got them at autogeek here are the links for both.