Today, I'm re-airing my conversation with Holly Brandenberger. If you have ever searched for anything related to essential oils on Instagram, then you likely have come across her aromatherapy account @thescienceofessentials. Holly is the face behind that account, she is a registered nurse and aromatherapist and is at the cutting edge of essential oils research in a hospital setting.In this interview, you’ll hear from her about the actual science of how essential oils work, what th...