Soap nuts are the dried shells of the Sapindus mukorossi tree. They contain natural Saponin, which gently cleans clothing without synthetic chemicals, fragrances, or plastic detergent bottles. They work in cold water, are safe for HE washers, are often preferred by people with sensitive skin, and are biodegradable after use. This guide gets your questions … Continue reading Soap Nuts: The Complete Guide to Natural Laundry