FELIWAY OPTIMUM 30 Day DIFFUSER REFILL - 48ml

You've found what works for your anxious cat — now keep it going. The FELIWAY® Optimum 30-Day Diffuser Refill (48ml) replenishes your existing Optimum diffuser device with the next-generation Feline Pheromone Complex for another full month of enhanced serenity.

Why Optimum is in a class of its own: The patented pheromone blend in FELIWAY Optimum was developed to address the limitations of earlier products. Where Classic targets facial pheromone pathways and Friends targets appeasing pheromone pathways, Optimum works across multiple feline stress-signalling channels — making it the go-to when standard products haven't delivered the full results you needed.

Ideal ongoing use for cats with:

• History of urine spraying, scratching, or hiding
• Multi-cat conflict that has improved but needs maintaining
• Persistent environmental anxiety (noise sensitivity, territory insecurity)
• General fearfulness or stress-related over-grooming

Tips to maximise your refill: Keep the diffuser plugged in continuously — don't switch it on and off. Position it in the room your cat uses most, away from draughts and air vents. Replace monthly for uninterrupted pheromone coverage.

Compatible with the FELIWAY® Optimum Diffuser device only. Drug-free, undetectable by humans, and safe for all other pets.