PRO PLAN® Veterinary Supplements Calming Care feline with Bifidobacterium longum (BL999) is a specialised probiotic supplement designed to help cats maintain calm behaviour. This unique probiotic strain (BL999) has been shown to support a balanced emotional state, helping to manage anxious behaviour in cats. It is ideal for cats that are particularly sensitive to changes in their environment or routine, or those that may experience anxious behaviours during events such as travel, fireworks, or changes in their living space. Each pack contains 30 easy-to-administer 1g sachets, allowing you to incorporate this supplement into your cat’s daily diet. Simply mix the powder with their food.