Magnesium deficiency is a major cause of hair loss in women. Zechsal Pure Magnesium Shampoo contains pure magnesium 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! In Zechsal Shampoo, the healing properties of pure magnesium are strengthened by vitamin-rich Irish moss. This unique formula is the key for healthy hair growth and to soothe your scalp 100% natural, paraben and SLS free.