"We have 2 MASSIVE SHEDDERS, 1 Lab/Retriever Mix and 1 Husky/Shepard Mix. We hardly have any carpeting in the house so hairballs were always apparent. We were, no word of a lie, sweeping every 2 days because everywhere you looked, there were hairballs! We were lucky enough to learn our Lab mix LOVES the suction hose on the vacuum, but dragging the vacuum out is time consuming and noisy. The Husky mix....terrified of the vacuum. The Husky/Shep mix would loose clumps of hair, even right after a good brushing. Bathtime....a messy, hairy nightmare! This product was recommended to me by a Petco Clerk about 3 weeks ago and I was absolutely skeptical. Bought a bottle....took it home...within 2 weeks I noticed an AMAZING difference. I just placed an online order for FOUR more bottles!!! Buy it! You won't regret it nor believe the results!"