Dietary changes, appropriate grooming, application of moisturizers, and occasional bathing with gentle, cat-friendly shampoo help treat a cat's dandruff, according to The Nest. Using a humidifier is helpful as well. Dandruff is a sign that the cat has dry skin, notes petMD.
A cat with dandruff benefits from a well-balanced diet of wet food that contains high levels of omega-3 or omega-6 fatty acids, which promote healthy skin and coat, explains The Nest. Ingesting fatty acids encourages the cat's body to produce oils that moisten the skin, thereby discouraging the dryness that leads to dandruff. Regularly brushing the cat's coat stimulates production of oils and helps distribute them more evenly throughout the coat. Brushing also removes the dead skin and excess fur that can cause dandruff if it accumulates.
Applying moisturizing lotions formulated specifically for cats helps soothe and moisturize the cat's skin, notes The Nest. A hypoallergenic lotion or one that contains colloidal oatmeal is best. Bathing a cat with medicated, moisturizing shampoos formulated for cats helps control dandruff by conditioning the skin and removing excess fur and dirt. Alternatively, wiping the cat's fur with a damp cloth can help prevent and remove dandruff, as can placing a humidifier in the area in which a cat spends most of its time.