Royal Canin Feline Calm is a veterinary-exclusive dry cat food specially formulated to help provide calming nutrients for cats facing stressful environments or situations. This includes calming support for digestive upsets, skin irritations, and urinary sensitivities. The complete and balanced formula includes cat calming nutrients like hydrolyzed milk protein and L-tryptophan to help calm your cat’s fearful behaviors in stressful environments or situations. A specific blend of dietary fibers, including psyllium, helps control hairball formation by stimulating her intestines to pass the hair she swallows. Precise amounts of B vitamins and amino acids help reinforce the skin barrier and provide skin care for sensitive skin. Plus, this diet has the exclusive S/O Index which means it promotes an environment unfavorable to crystal formation in the bladder.