OstroVit Mg + B6 90 tabs. Right now, especially for you in the form of sparkling tablets! OstroVit MG + B6. OstroVit MG + B6 properties. Magnesium enriched with vitamin B6. Magnesium citrate (magnesium), bulking agents: microcrystalline cellulose, starch; anticaking agents: magnesium salts of fatty acids, silicon dioxide; pyridoxine hydrochloride (vit. ).