Laundry Soaker - Figgy & Co
This 750g tub is a stains worst nightmare. At a whopping 50% active, you won't find anything like this on the supermarket shelf. Made from only oxygen bleach and baking soda this really is a powerful stain remover that is gentle on your clothes and the environment. But even better there are no unnecessary chemicals or fillers, and because it's so concentrated a little goes a long way. Use 1/4 cup per bucket.
(FYI most supermarket soakers are approximately 20% active. Using the Figgy soaker means you will need less than half the amount you would usually use for the same effect- without the additional chemical burden. Hooray!)