Serene-UM Drops Serene-UM helps to calm and pacify pets through any stressful situations including Fireworks making life easier on pets and their owners. " Serene-UM is totally natural and does not cause drowsiness like a sedative. " Easy to give drops, no mess, no waste. Officially recommended by the UK's top Animal Behaviourist - Sara Whittaker " Serene-UM is totally safe for Pets
