I bought this on a whim when stocking my new apartment, hoping it might work as a plastic-free replacement for Tide sticks. This stain remover works WAY better than any Tide stick I have ever used! How is this possible? I have no idea. I first used it on an oil-based stain on a shirt that had already been through the wash. The shirt was basically brand new and I was so mad that this stain hadn't come out, despite me immediately hitting it with hot water and soap and throwing it in the wash--but I decided to give this stain stick a shot. The stain came out like magic. So far it's worked for every stain I've thrown at it, including fresh stains on white fabric from my bright purple hair dye (!). One of the best purchases I've ever made.