Magnesium is an essential mineral for the health and wellbeing of mother and baby. Magnesium serves literally hundreds of functions within the human body. Your need for magnesium increases during pregnancy and in preparation of labor and giving birth. Pure Magnesium Oil from the unique 250 million years old ancient Zechstein Sea, the same sea that life on land developed from, untouched and never been exposed to modern day pollution! Zechsal Pure Magnesium Oil is 100% natural and absorbs through the skin, it is not possible to take in too much magnesium, since any excess magnesium will simply be expelled by the body.