All-Purpose Cleaner is an all-natural concentrated mixture of plant and oil seed extracts proven effective cleaning agents. The cost of a 3-oz.  of concentrate per quart spray bottle is from $2.25 to 74 cents per gallon depending upon purchased volumes. They  contain no harsh chemicals that contaminate products, harm workers or leave residues and odors. They are hypoallergenic. They pose no risk to people, animals, birds or beneficial insects. Processed plant and oil seed organic ingredients are supplied by processors using extraction methods that preserve original actives. Components are combined using a proprietary process to make an aqueous aggregation of micelles optimized for superior cleaning performance without toxic chemicals. (See Diagram)