Contains natural enzymes. Contains four strands of bacteria that are specifically chosen for drain cleaning activity. Targets proteins,carbohydrates,animal & vegetable fats,oils and cellulose. Prevents build-up of sludge,scum,grease & organic solids. Eliminates waste & odors from drains,grease traps,septic tanks & disposal systems. Removes build-up regular drain pipe openers pass. Size 10 ozs.