【Natural Safety Effect】Natural lavender and chamomile essential oils relieve tension and anxiety. Let your pet relax and eliminate aggression. Safe for long term use. Hypoallergenic. No search. 【Fast and long-lasting relief】calming collar for anxious, stressed, anxious or hyperactive dogs. It starts working in 1 hour. Help improve your bad behavior quickly and effectively. Reduces stress in pets. 【Effectively Improve Bad Behavior】Our dog calming collar can relieve anxiety or stress-related behavior caused by anxiety, stress, heat, loud noise, transportation, travel, sightseeing veterinarians, fireworks, thunderstorms, separation anxiety and new environments. 【30 Days Continuous Rest】 Calming collar for dogs and puppies works fast and releases pheromones for 30 days. Provides superior, long-lasting pheromone delivery. Wear it continuously and replace it every 4 weeks to obtain optimal results. Waterproof, no need to take off the collar when taking a bath or playing in the rain.