Many pet owners want to know how long a natural pheromone calming collar for dogs lasts once applied. Most natural calming collars are made to work for about two to four weeks once activated, although some types can last up to 30 days, depending on their ingredients and exposure to moisture or heat. This simple […] The post How Long Does a Natural Pheromone Collar Last Once Activated? appeared first on A Moment With Franca.
