All Charlie's Soap raw materials are either biodegradable (within a month!) ingredients or natural mineral ingredients. The final formulas have been approved by the USDA for use around food preparing surfaces and are non-toxic.
Charlie's Soap Laundry Powder:
Biodegradable Ingredients: "C12-15, Pareth-2" (vegetble and mineral sourced surfactants)
Natural Mineral Ingredients: sodium carbonate, sodium metasilicate (rinse aid formed by heating a mixture of sand and sodium carbonate)