Ark Naturals Happy Traveler (30 capsules) A safe all-natural herbal calming formula for stressed, nervous, or anxious pets. Happy traveler is specially formulated to relieve anxiety, and help control stress-related behavior in your pets. Great for those difficult times for your pet: Bath-Time, House Guests, A Trip to the Vet, or Those Long Family Trips.Used for dogs and cats. Package: 500mg Ingredients Each 500 mg Capsule contains: Valerian 100 mg German Chamomile 100 mg Kava Kava 50 mg St. John's Wort 50 mg Melatonin 300 mcg