Our grandson who lives with us recently began a job as a server's assistant in a restaurant where he has to wear a white, button-down collar, long--sleeve dress shirt every day. The stains he gets are everything from wine to blueberries, to meat juices, etc. I had used the "regular" Shout stain remover for years, but it wasn't getting the stains out of his shirts. I looked for a "green" product, and chose Nature's Source. NS's stain-removing capabilities are unbelievable! My husband is an analytical chemist, and he frequently washes our grandson's shirts; he, too, is amazed! THANKS, S.C. JOHNSON!