Comfort Zone Multi-Cat refills pair with all Comfort Zone cat calming diffusers. Each refill provides up to 30 days of continuous calming benefits. The drug-free formula mimics a cat's natural pheromones to let them know the area is safe and familiar which helps reduce multi-cat tension and conflict. These behaviors can include swatting, scratching, biting, fighting, hissing, growling, spitting, screaming, non-playful staring, stalking, chasing, and blocking.

• REDUCE MULTI-CAT CONFLICT: Use to reduce aggressive behaviors between cats like swatting, scratching, biting, fighting, hissing, growling, spitting, screaming, non-playful staring, stalking, chasing, and blocking. Most cats saw improved behavior as soon as 1 week
• IMPROVE YOUR CATS' BEHAVIOR: Helps calms create a calming environment for your cats and minimizes unwanted behaviors like excessive scratching and urine marking
• PHEROMONES FOR CATS: Creates a soothing environment to reduce unwanted behaviors such as excessive meowing, hiding, vocalization, scratching, and over-grooming
• DRUG & FRAGRANCE FREE: Drug-free solution so you can feel good about helping your cats feel good
• TRUSTED & EXPERT RECOMMENDED: Comfort Zone has provided care with cat calming pheromones for over 20 years, making it a trusted choice for pet parents
• SAFE & TESTED: Meets Intertek electrical safety and certified to UL standards
• 30 DAYS OF CALM: Perfect for new users, this starter kit includes two diffusers and two cat pheromone calming refills. Place the diffuser in your cats' favorite room and replace the refill every 30 days for continuous calming benefits