Royal Canin Feline Hair and Skin Nutrition is a fine-quality prescription cat food designed for cats with sensitive skin and poor coat conditions. The food consists of a special complex of nutrients, including Vitamin B, that strengthens the skin’s natural barrier against infection and allergies. Top-quality proteins and specific amino acids in the diet assist in the formation of new skin and hair cells. Chicken meat present as the primary constituent of the food enhances its palatability. Exclusive use of Royal Canin Feline Hair and Skin results in a tremendous improvement in the skin and coat health of the cat in just 21 days. Royal Canin Feline Hair and Skin Nutrition prescription food can be given to cats who are between 1 and 10 years old.