Fels-Naptha a powerful laundry bar and pre-stain treater works diligently to tackle stubborn greasy and oily stains perspiration marks and the notorious ring-around-the-collar. With a century-long track record of banishing stains from America s clothing this reliable laundry bar can handle your toughest laundry challenges. Simply dampen the stain with a wet bar of Fels-Naptha let it sit for a few minutes and wash your clothes as usual. Embrace the confidence that adults everywhere place in this trusted product bidding farewell to stubborn stains and welcoming a fresh worry-free approach to laundry care.