While technically not an oil, it can leave an oily residue on your skin which is where the name comes from.Magnesuim is a crucial nutrient for your body and studies show most people need more of it! You can apply it to your muscles and massage in to help relieve soreness or spray it on the bottom of your feet before bed to promote a healthy sleep. It will most likely tingle when you apply it, but they will disappear the more you use it.