Many pet parents experience allergies because of their furry companions. However, pet hair itself is not allergenic. Certain proteins, called allergens, are the main culprit of the terrible allergic reactions pet parents experience. Saliva, urine, and sebum from sebaceous glands produce these proteins that attach to the skin of cats and dogs. As pets go about their day, they shed skin cells, also known as pet dander, that contains these proteins and collect in the air, furniture, and clothing. So, reducing the amount of pet dander in the environment will reduce pet allergies.