GC MI Paste Plus® Toothpaste: Strengthening through calcium, phosphate and fluoride GC MI Paste Plus® toothpaste is a valuable addition to oral care, as it contains calcium, phosphate, and fluoride. This combination helps strengthen teeth and promote overall dental health. Important usage instructions Recaldent®, a key component of the paste, is a milk casein derivative. Therefore, its use should be avoided by individuals with allergies to milk proteins or hydroxybenzoates. Recaldent® is based on milk casein Caution if you have a milk protein or hydroxybenzoate allergy.