When you do skin brushing you take off the outside dead skin cells and any excreted waste products.  It can also remove some protective oils, leaving your skin barrier more sensitive.  After sauna, excessive perspiration, hot bath or skin brushing, the effect on the skin barrier is similar, being less protected.  If you put a high concentration magnesium oil on sensitive skin it can feel prickly.  This is because the fats act like an insulator of the sensory nerves. When you have removed some of that protective barrier via sauna, bathing, perspiration, skin brushing etc, you need to put the protection back.  Magnesium Cream is recommended to restock the skin barrier with natural fats, as well as the magnesium chloride salts, which are then much more tolerable. You can also combine our products.  For example, lubricate and protect the skin barrier by massaging in Magnesium Cream first.  Then you can add some extra sprays of Magnesium Oil Spritz where you need higher concentrations – such as high wearing (friction) joint areas and exercised muscles. Magnesium remains inside the skin barrier wrapped up with the fat molecules protecting the skin barrier from moisture loss.  From that reservoir the body absorbs magnesium ions as needed over time.  So, using the Magnesium Cream gives you a more sustained release over time due to the capacity of the fats to store magnesium in the skin barrier.  Magnesium oil just gives you a high intensity application fast (via massage) in a particular location that needs release. To store more inside the skin for sustained release and uptake by the body over time, you need the help of fats, which are also insulating and make the application of magnesium salts more pleasant. The combination of natural plant oils and butters together with magnesium provides premium skin care benefits, including softening of fines lines and wrinkles and a more youthful appearance.