Blue Tablet: Magnesium bisglycinate, microcrystalline cellulose (bulking agent), lactose monohydrate, starch, tablet coating agent (hydroxypropylmethylcellulose (thickening agent), calcium sulfate (stabilizer), magnesium carbonate (acidity regulator), hydroxypropyl cellulose (coating agent), fatty acids (stabilizer), polyethylene glycol (emulsifier)), polyvinylpyrrolidone (stabilizer), magnesium salts of fatty acids (anti-caking agent), pyridoxine HCl, vitamin D3 preparation, Brilliant Blue FCF (coloring agent). Yellow Tablet: Microcrystalline cellulose (bulking agent), tri-magnesium citrate, magnesium malate, lactose monohydrate, magnesium taurate, starch, tablet coating agent (hydroxypropylmethylcellulose (thickening agent), calcium sulfate (stabilizer), magnesium carbonate (acidity regulator)). Hydroxypropyl cellulose (coating agent), fatty acids (stabilizer), polyethylene glycol (emulsifier), polyvinylpyrrolidone (stabilizer), magnesium salts of fatty acids (anti-caking agent), pyridoxine HCl, Vitamin D3 preparation, Sunset Yellow (coloring agent)