content: It was a pain trying to put Allerpet C on my cats. They hated me every time and promptly licked all of it off. I could see no difference whatsoever in my allergies even after treating the cats twice a week for a month and cleaning my entire house after each treatment, right down to washing the walls, floors, upholstery and rugs. NADA. I wouldn't waste my money on this stuff. Instead I would recommend going to the doctor and getting some good Allergy medication! That's what I did and I kept my kitties.