Made with pure australian eucalyptus oil; premium concentrate; use less per wash; costs less overall; removes stubborn soils & stains; ideal in hot or cold water; h.e. Washing machine safe; low allergenic; low in sodium and phosphate; top and front loading machines; suitable for septic bio and grey water systems; euca actually cleans and protects the inside of your machine so it lasts longer and smells fresh as well.