Dog pheromones to reduce stress. Said to help reduce anxious behavior in dogs. Includes: 1 dedicated diffuser + 1 Adaptil liquid bottle - Brand: ADAPTIL - Volume: 48mL - Purpose: Reduce dog stress - Features: Contains pheromones that provide a sense of security - How to use: Use with a dedicated diffuser Exp 2027/05 I plan to open the box and ship it in a smaller package. Thank you for looking.