OsiMagnesium magnesium oil spray with pure magnesium from the Zechstein source. Magnesium oil is a liquid form of magnesium chloride, dissolved in water. By spraying magnesium oil on the skin, the magnesium is quickly absorbed through the skin. Zechstein magnesium Suitable for external use Magnesium plays a role in maintaining strong and flexible muscles 100% natural and vegan Contents: 200 ml How to use? Suitable for daily use. Use 2.5 ml (16 pumps, this corresponds to 257 mg magnesium). Apply to the skin and massage slowly. Let the oil soak in for at least 20 minutes. Then rinse if desired.