Vagus Nerve Oil - 0.5ozOsea Melt away signs of stress. Our Vagus Nerve Oil helps promote a sense of well being and serenity. This soothing blend of essential oils calms for a moment of relaxation and balance during your day. The vagus nerve activates the bodys relaxation response and helps regulate stress. Named after the Latin word for wandering, the vagus nerve is the longest cranial nerve in the body. All Skin Types Size: 0. 5 fl oz