This fantastic magnesium hemp oil from Herbs & Hydro improves sleep, helps muscle regeneration, increases magnesium levels and relieves joint pain. Spray directly onto the body then massage into the skin. Magnesium oil can be left on the skin and rinsed or wiped after 20 minutes. You may feel a small tingling sensation at the application site, which should fade after 2-6 minutes. If after several applications, the skin is still sensitive, the oil can be diluted with a small amount of clean water. Always remember to shake well before use.