Planet Automatic Dishwasher Pacs contain a highly effective biodegradable formula that is completely phosphate and chlorine-free. It will leave your dishes clean and virtually spotless. Free & Clear formula does not contain any added fragrances, dyes, or synthetic preservatives. Planet Automatic Dishwasher Pacs are certified 100% biodegradable by SCS Global Services. Ingredients are from plant-based sources. The formula is phosphate-free and safe for septic systems.