Allerpet For Dogs is formulated specifically to remove dog dander for those persons who are allergic to dogs. It lets your pet become a part of your family in spite of someone's allergy. Allerpet For Cats is specifically formulated to remove cat dander (Fel d1) for people who are allergic to cats. It lets you live more comfortably with your cat. Allerpet Single Solution cleans the hair of dander, saliva, sebaceous gland secretions and urine residue. Allerpet/d cleanses the hair of its dander, saliva and sebaceous gland secretions, the antigens, along with urine, that are all too often on the rear legs. These are all major sources of pet-related allergens which are the source of pet-related allergies. Allerpet for Dogs is non-toxic and completely safe to use on puppies over the age of 8 weeks. Allerpet is non-oily and will not leave a sticky residue on the coat. Allerpet contains no fragrance. It is safe to use regardless of how frequently an animal licks its coat.