🐾 Purr-fect Peace of Mind for You and Your Cat! Perfect for cats of all life stages, ensuring every kitty feels at home. Enjoy a calm environment without any lingering odors for humans or other pets. Join the ranks of satisfied cat owners and professionals who trust FELIWAY. Harness the power of 25 years of research to soothe your pet's anxiety. Transform your space into a serene sanctuary for your feline friend. Scentless Formula Clinically Proven 25+ Years Research The FELIWAY Optimum Diffuser + Refill is a clinically proven solution designed to calm cats, backed by over 25 years of scientific research. This scentless, species-specific formula is trusted by veterinarians and pet behaviorists, ensuring a tranquil environment for your feline companion without affecting humans or other pets.