100% pure, organically sourced Magnesium oil spray, from the pristine Salt Lakes of Western Australia. You can apply this spray 20 minutes before bed behind the knees, on top of the feet and to the lower back to help ease mild pain and aches. This is odourless and non oily and will assist in relieving muscular aches, sprains and strains. Amazing Oils Magnesium Oil Spray will provide symptomatic relief of tension headache and the relief of nerve pain/mild neuralgia. It also provides symptomatic relief of low back pain.